628940926 has 16 divisors (see below), whose sum is σ = 1007890560. Its totient is φ = 293471640.

The previous prime is 628940909. The next prime is 628940941. The reversal of 628940926 is 629049826.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120970 + ... + 126061.

It is an arithmetic number, because the mean of its divisors is an integer number (62993160).

Almost surely, 2^628940926 is an apocalyptic number.

628940926 is a deficient number, since it is larger than the sum of its proper divisors (378949634).

628940926 is a wasteful number, since it uses less digits than its factorization.

628940926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247119.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 628940926 is about 25078.6946630003. The cubic root of 628940926 is about 856.7812464310.

Subtracting 628940926 from its reverse (629049826), we obtain a square (108900 = 330²).

The spelling of 628940926 in words is "six hundred twenty-eight million, nine hundred forty thousand, nine hundred twenty-six".