402424264 has 32 divisors (see below), whose sum is σ = 827079840. Its totient is φ = 182044800.

The previous prime is 402424223. The next prime is 402424303. The reversal of 402424264 is 462424204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7732 + ... + 29404.

It is an arithmetic number, because the mean of its divisors is an integer number (25846245).

Almost surely, 2^402424264 is an apocalyptic number.

402424264 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402424264 is an abundant number, since it is smaller than the sum of its proper divisors (424655576).

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

402424264 is a wasteful number, since it uses less digits than its factorization.

402424264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21901 (or 21897 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 402424264 is about 20060.5150482235. The cubic root of 402424264 is about 738.2918135159.

Adding to 402424264 its reverse (462424204), we get a palindrome (864848468).

The spelling of 402424264 in words is "four hundred two million, four hundred twenty-four thousand, two hundred sixty-four".