401255465 has 16 divisors (see below), whose sum is σ = 519225168. Its totient is φ = 295923456.

The previous prime is 401255431. The next prime is 401255467. The reversal of 401255465 is 564552104.

It can be written as a sum of positive squares in 8 ways, for example, as 77651344 + 323604121 = 8812^2 + 17989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401255465 is a prime.

It is a super-2 number, since 2×401255465² = 322011896384732450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401255467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51827 + ... + 59063.

It is an arithmetic number, because the mean of its divisors is an integer number (32451573).

Almost surely, 2^401255465 is an apocalyptic number.

It is an amenable number.

401255465 is a deficient number, since it is larger than the sum of its proper divisors (117969703).

401255465 is a wasteful number, since it uses less digits than its factorization.

401255465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8108.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 401255465 is about 20031.3620355681. The cubic root of 401255465 is about 737.5763567403.

The spelling of 401255465 in words is "four hundred one million, two hundred fifty-five thousand, four hundred sixty-five".