1849649472 has 448 divisors, whose sum is σ = 6351544320. Its totient is φ = 522547200.

The previous prime is 1849649437. The next prime is 1849649497. The reversal of 1849649472 is 2749469481.

1849649472 is a `hidden beast` number, since 1 + 84 + 9 + 6 + 494 + 72 = 666.

1849649472 is digitally balanced in base 4, 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 (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25337628 + ... + 25337700.

Almost surely, 2^1849649472 is an apocalyptic number.

1849649472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1849649472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3175772160).

1849649472 is an abundant number, since it is smaller than the sum of its proper divisors (4501894848).

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

1849649472 is a wasteful number, since it uses less digits than its factorization.

1849649472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 163 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 1849649472 is about 43007.5513369455. The cubic root of 1849649472 is about 1227.5234882259.

Subtracting 1849649472 from its reverse (2749469481), we obtain a square (899820009 = 29997²).

The spelling of 1849649472 in words is "one billion, eight hundred forty-nine million, six hundred forty-nine thousand, four hundred seventy-two".