403930252 has 48 divisors (see below), whose sum is σ = 784963872. Its totient is φ = 180346880.

The previous prime is 403930229. The next prime is 403930271. The reversal of 403930252 is 252039304.

It is a self number, because there is not a number n which added to its sum of digits gives 403930252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680868 + ... + 681460.

It is an arithmetic number, because the mean of its divisors is an integer number (16353414).

Almost surely, 2^403930252 is an apocalyptic number.

It is an amenable number.

403930252 is a deficient number, since it is larger than the sum of its proper divisors (381033620).

403930252 is a wasteful number, since it uses less digits than its factorization.

403930252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 403930252 is about 20098.0161210006. The cubic root of 403930252 is about 739.2116342308.

Adding to 403930252 its reverse (252039304), we get a palindrome (655969556).

The spelling of 403930252 in words is "four hundred three million, nine hundred thirty thousand, two hundred fifty-two".