401765316 has 24 divisors (see below), whose sum is σ = 941349024. Its totient is φ = 133365120.

The previous prime is 401765303. The next prime is 401765411. The reversal of 401765316 is 613567104.

It is a super-2 number, since 2×401765316² = 322830738281159712, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 66570 + ... + 72353.

It is an arithmetic number, because the mean of its divisors is an integer number (39222876).

Almost surely, 2^401765316 is an apocalyptic number.

It is an amenable number.

401765316 is an abundant number, since it is smaller than the sum of its proper divisors (539583708).

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

401765316 is a wasteful number, since it uses less digits than its factorization.

401765316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139171 (or 139169 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 401765316 is about 20044.0843143307. The cubic root of 401765316 is about 737.8886223764. Note that the first 3 decimals are identical.

The spelling of 401765316 in words is "four hundred one million, seven hundred sixty-five thousand, three hundred sixteen".