628654252 has 12 divisors (see below), whose sum is σ = 1101159136. Its totient is φ = 314037360.

The previous prime is 628654249. The next prime is 628654297. The reversal of 628654252 is 252456826.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67524 + ... + 76267.

Almost surely, 2^628654252 is an apocalyptic number.

It is an amenable number.

628654252 is a deficient number, since it is larger than the sum of its proper divisors (472504884).

628654252 is a wasteful number, since it uses less digits than its factorization.

628654252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144888 (or 144886 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 628654252 is about 25072.9785227045. The cubic root of 628654252 is about 856.6510517794.

The spelling of 628654252 in words is "six hundred twenty-eight million, six hundred fifty-four thousand, two hundred fifty-two".