628789374 has 24 divisors (see below), whose sum is σ = 1363861512. Its totient is φ = 209368080.

The previous prime is 628789367. The next prime is 628789391. The reversal of 628789374 is 473987826.

628789374 is a `hidden beast` number, since 628 + 7 + 8 + 9 + 3 + 7 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 628789374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1624 + ... + 35499.

It is an arithmetic number, because the mean of its divisors is an integer number (56827563).

Almost surely, 2^628789374 is an apocalyptic number.

628789374 is an abundant number, since it is smaller than the sum of its proper divisors (735072138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628789374 is a wasteful number, since it uses less digits than its factorization.

628789374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38072 (or 38069 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 628789374 is about 25075.6729520865. The cubic root of 628789374 is about 856.7124231458.

The spelling of 628789374 in words is "six hundred twenty-eight million, seven hundred eighty-nine thousand, three hundred seventy-four".