1683974250 has 192 divisors, whose sum is σ = 5373388800. Its totient is φ = 372384000.

The previous prime is 1683974221. The next prime is 1683974261. The reversal of 1683974250 is 524793861.

1683974250 is a `hidden beast` number, since 1 + 6 + 8 + 397 + 4 + 250 = 666.

1683974250 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

1683974250 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1683974196 and 1683974205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 486526 + ... + 489974.

It is an arithmetic number, because the mean of its divisors is an integer number (27986400).

It is a 1-persistent number, because it is pandigital, but 2⋅1683974250 = 3367948500 is not.

It is a vampire number, since it can be written as 20694 ⋅ 81375 (with its own digits).

Almost surely, 2^1683974250 is an apocalyptic number.

1683974250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1683974250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2686694400).

1683974250 is an abundant number, since it is smaller than the sum of its proper divisors (3689414550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1683974250 is a wasteful number, since it uses less digits than its factorization.

1683974250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510 (or 3497 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1683974250 is about 41036.2553116144. The cubic root of 1683974250 is about 1189.7210583635.

The spelling of 1683974250 in words is "one billion, six hundred eighty-three million, nine hundred seventy-four thousand, two hundred fifty".