401331512 has 32 divisors (see below), whose sum is σ = 798167520. Its totient is φ = 188528640.

The previous prime is 401331473. The next prime is 401331517. The reversal of 401331512 is 215133104.

It is a super-2 number, since 2×401331512² = 322133965048412288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401331517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85712 + ... + 90272.

It is an arithmetic number, because the mean of its divisors is an integer number (24942735).

Almost surely, 2^401331512 is an apocalyptic number.

It is an amenable number.

401331512 is a deficient number, since it is larger than the sum of its proper divisors (396836008).

401331512 is a wasteful number, since it uses less digits than its factorization.

401331512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231 (or 5227 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 401331512 is about 20033.2601440704. The cubic root of 401331512 is about 737.6229496061.

Adding to 401331512 its reverse (215133104), we get a palindrome (616464616).

The spelling of 401331512 in words is "four hundred one million, three hundred thirty-one thousand, five hundred twelve".