1815952996 has 81 divisors (see below), whose sum is σ = 3808006923. Its totient is φ = 756824640.

The previous prime is 1815952991. The next prime is 1815952997. The reversal of 1815952996 is 6992595181.

The square root of 1815952996 is 42614.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 982822500 + 833130496 = 31350^2 + 28864^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1815952991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12187530 + ... + 12187678.

Almost surely, 2^1815952996 is an apocalyptic number.

1815952996 is the 42614-th square number.

It is an amenable number.

1815952996 is an abundant number, since it is smaller than the sum of its proper divisors (1992053927).

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

1815952996 is a wasteful number, since it uses less digits than its factorization.

1815952996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 175 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 55.

The cubic root of 1815952996 is about 1220.0235138351.

The spelling of 1815952996 in words is "one billion, eight hundred fifteen million, nine hundred fifty-two thousand, nine hundred ninety-six".