628367530 has 32 divisors (see below), whose sum is σ = 1293949440. Its totient is φ = 215222400.

The previous prime is 628367497. The next prime is 628367539. The reversal of 628367530 is 35763826.

It is not an unprimeable number, because it can be changed into a prime (628367539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75055 + ... + 83005.

It is an arithmetic number, because the mean of its divisors is an integer number (40435920).

Almost surely, 2^628367530 is an apocalyptic number.

628367530 is an abundant number, since it is smaller than the sum of its proper divisors (665581910).

628367530 is a wasteful number, since it uses less digits than its factorization.

628367530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9094.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 628367530 is about 25067.2601215211. The cubic root of 628367530 is about 856.5207957321.

The spelling of 628367530 in words is "six hundred twenty-eight million, three hundred sixty-seven thousand, five hundred thirty".