961915400 has 24 divisors (see below), whose sum is σ = 2236453770. Its totient is φ = 384766080.

The previous prime is 961915397. The next prime is 961915411. The reversal of 961915400 is 4519169.

It can be written as a sum of positive squares in 3 ways, for example, as 839724484 + 122190916 = 28978^2 + 11054^2 .

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 5 ways as a sum of consecutive naturals, for example, 2404589 + ... + 2404988.

Almost surely, 2^961915400 is an apocalyptic number.

It is an amenable number.

961915400 is an abundant number, since it is smaller than the sum of its proper divisors (1274538370).

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

961915400 is a wasteful number, since it uses less digits than its factorization.

961915400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809593 (or 4809584 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 961915400 is about 31014.7610018198. The cubic root of 961915400 is about 987.1404747935.

The spelling of 961915400 in words is "nine hundred sixty-one million, nine hundred fifteen thousand, four hundred".