634245928 has 16 divisors (see below), whose sum is σ = 1259164980. Its totient is φ = 298468608.

The previous prime is 634245923. The next prime is 634245949. The reversal of 634245928 is 829542436.

634245928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 632120164 + 2125764 = 25142^2 + 1458^2 .

It is not an unprimeable number, because it can be changed into a prime (634245923) 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, 2331651 + ... + 2331922.

Almost surely, 2^634245928 is an apocalyptic number.

634245928 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

634245928 is a deficient number, since it is larger than the sum of its proper divisors (624919052).

634245928 is a wasteful number, since it uses less digits than its factorization.

634245928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663596 (or 4663592 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 634245928 is about 25184.2396748443. The cubic root of 634245928 is about 859.1834362093.

The spelling of 634245928 in words is "six hundred thirty-four million, two hundred forty-five thousand, nine hundred twenty-eight".