401312456 has 16 divisors (see below), whose sum is σ = 757955340. Its totient is φ = 199191040.

The previous prime is 401312437. The next prime is 401312459. The reversal of 401312456 is 654213104.

It can be written as a sum of positive squares in 2 ways, for example, as 401200900 + 111556 = 20030^2 + 334^2 .

It is a super-2 number, since 2×401312456² = 322103374681503872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401312459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181985 + ... + 184176.

Almost surely, 2^401312456 is an apocalyptic number.

It is an amenable number.

401312456 is a deficient number, since it is larger than the sum of its proper divisors (356642884).

401312456 is a wasteful number, since it uses less digits than its factorization.

401312456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366304 (or 366300 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 401312456 is about 20032.7845293659. The cubic root of 401312456 is about 737.6112748311.

The spelling of 401312456 in words is "four hundred one million, three hundred twelve thousand, four hundred fifty-six".