628438762 has 32 divisors (see below), whose sum is σ = 1147364352. Its totient is φ = 252006144.

The previous prime is 628438751. The next prime is 628438777. The reversal of 628438762 is 267834826.

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 15 ways as a sum of consecutive naturals, for example, 33543 + ... + 48805.

It is an arithmetic number, because the mean of its divisors is an integer number (35855136).

Almost surely, 2^628438762 is an apocalyptic number.

628438762 is a deficient number, since it is larger than the sum of its proper divisors (518925590).

628438762 is a wasteful number, since it uses less digits than its factorization.

628438762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15462.

The product of its digits is 774144, while the sum is 46.

The square root of 628438762 is about 25068.6808986831. The cubic root of 628438762 is about 856.5531596917.

The spelling of 628438762 in words is "six hundred twenty-eight million, four hundred thirty-eight thousand, seven hundred sixty-two".