1902974850 has 192 divisors, whose sum is σ = 6020448000. Its totient is φ = 432967680.

The previous prime is 1902974839. The next prime is 1902974881. The reversal of 1902974850 is 584792091.

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

It is a junction number, because it is equal to n+sod(n) for n = 1902974796 and 1902974805.

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, 3297762 + ... + 3298338.

It is an arithmetic number, because the mean of its divisors is an integer number (31356500).

Almost surely, 2^1902974850 is an apocalyptic number.

1902974850 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 1902974850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3010224000).

1902974850 is an abundant number, since it is smaller than the sum of its proper divisors (4117473150).

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

1902974850 is a wasteful number, since it uses less digits than its factorization.

1902974850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1902974850 is about 43623.0999586228. The cubic root of 1902974850 is about 1239.2084025853.

The spelling of 1902974850 in words is "one billion, nine hundred two million, nine hundred seventy-four thousand, eight hundred fifty".