628884842 has 16 divisors (see below), whose sum is σ = 999283392. Its totient is φ = 295807680.

The previous prime is 628884833. The next prime is 628884877. The reversal of 628884842 is 248488826.

It is a super-2 number, since 2×628884842² = 790992288994729928, which contains 22 as substring.

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, 131717 + ... + 136407.

It is an arithmetic number, because the mean of its divisors is an integer number (62455212).

Almost surely, 2^628884842 is an apocalyptic number.

628884842 is a deficient number, since it is larger than the sum of its proper divisors (370398550).

628884842 is a wasteful number, since it uses less digits than its factorization.

628884842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8653.

The product of its digits is 1572864, while the sum is 50.

The square root of 628884842 is about 25077.5764778018. The cubic root of 628884842 is about 856.7557786720.

The spelling of 628884842 in words is "six hundred twenty-eight million, eight hundred eighty-four thousand, eight hundred forty-two".