401431527 has 12 divisors (see below), whose sum is σ = 662680720. Its totient is φ = 229389408.

The previous prime is 401431519. The next prime is 401431529. The reversal of 401431527 is 725134104.

It is not a de Polignac number, because 401431527 - 2³ = 401431519 is a prime.

It is a super-2 number, since 2×401431527² = 322294541739103458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401431527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401431529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3185902 + ... + 3186027.

Almost surely, 2^401431527 is an apocalyptic number.

401431527 is a deficient number, since it is larger than the sum of its proper divisors (261249193).

401431527 is a wasteful number, since it uses less digits than its factorization.

401431527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6371942 (or 6371939 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 401431527 is about 20035.7562123320. The cubic root of 401431527 is about 737.6842183492.

The spelling of 401431527 in words is "four hundred one million, four hundred thirty-one thousand, five hundred twenty-seven".