628974542 has 16 divisors (see below), whose sum is σ = 1083357312. Its totient is φ = 268281720.

The previous prime is 628974523. The next prime is 628974553. The reversal of 628974542 is 245479826.

It is a congruent number.

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, 103508 + ... + 109415.

It is an arithmetic number, because the mean of its divisors is an integer number (67709832).

Almost surely, 2^628974542 is an apocalyptic number.

628974542 is a deficient number, since it is larger than the sum of its proper divisors (454382770).

628974542 is a wasteful number, since it uses less digits than its factorization.

628974542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213143.

The product of its digits is 967680, while the sum is 47.

The square root of 628974542 is about 25079.3648643661. The cubic root of 628974542 is about 856.7965107397.

The spelling of 628974542 in words is "six hundred twenty-eight million, nine hundred seventy-four thousand, five hundred forty-two".