628751434 has 16 divisors (see below), whose sum is σ = 982267776. Its totient is φ = 301568400.

The previous prime is 628751423. The next prime is 628751479. The reversal of 628751434 is 434157826.

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, 54582 + ... + 65089.

It is an arithmetic number, because the mean of its divisors is an integer number (61391736).

Almost surely, 2^628751434 is an apocalyptic number.

628751434 is a deficient number, since it is larger than the sum of its proper divisors (353516342).

628751434 is a wasteful number, since it uses less digits than its factorization.

628751434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119781.

The product of its digits is 161280, while the sum is 40.

The square root of 628751434 is about 25074.9164305686. The cubic root of 628751434 is about 856.6951919793.

The spelling of 628751434 in words is "six hundred twenty-eight million, seven hundred fifty-one thousand, four hundred thirty-four".