1902979456 has 96 divisors (see below), whose sum is σ = 4603158000. Its totient is φ = 767483904.

The previous prime is 1902979321. The next prime is 1902979501. The reversal of 1902979456 is 6549792091.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255270 + ... + 262618.

Almost surely, 2^1902979456 is an apocalyptic number.

1902979456 is a gapful number since it is divisible by the number (16) 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 1902979456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2301579000).

1902979456 is an abundant number, since it is smaller than the sum of its proper divisors (2700178544).

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

1902979456 is an equidigital number, since it uses as much as digits as its factorization.

1902979456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7404 (or 7375 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The square root of 1902979456 is about 43623.1527517212. The cubic root of 1902979456 is about 1239.2094023865.

The spelling of 1902979456 in words is "one billion, nine hundred two million, nine hundred seventy-nine thousand, four hundred fifty-six".