6431264 has 24 divisors (see below), whose sum is σ = 14470848. Its totient is φ = 2756160.

The previous prime is 6431261. The next prime is 6431273. The reversal of 6431264 is 4621346.

It is a super-2 number, since 2×6431264² = 82722313275392, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (6431261) 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, 14132 + ... + 14579.

It is an arithmetic number, because the mean of its divisors is an integer number (602952).

Almost surely, 2^6431264 is an apocalyptic number.

It is an amenable number.

6431264 is an abundant number, since it is smaller than the sum of its proper divisors (8039584).

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

6431264 is a wasteful number, since it uses less digits than its factorization.

6431264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28728 (or 28720 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 6431264 is about 2535.9936908439. The cubic root of 6431264 is about 185.9653845476.

The spelling of 6431264 in words is "six million, four hundred thirty-one thousand, two hundred sixty-four".