628920632 has 16 divisors (see below), whose sum is σ = 1179511200. Its totient is φ = 314384320.

The previous prime is 628920601. The next prime is 628920647. The reversal of 628920632 is 236029826.

It is a super-2 number, since 2×628920632² = 791082322710558848, which contains 22 as substring.

It is a congruent number.

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, 42257 + ... + 55167.

It is an arithmetic number, because the mean of its divisors is an integer number (73719450).

Almost surely, 2^628920632 is an apocalyptic number.

It is an amenable number.

628920632 is a deficient number, since it is larger than the sum of its proper divisors (550590568).

628920632 is a wasteful number, since it uses less digits than its factorization.

628920632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19006 (or 19002 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 628920632 is about 25078.2900533509. The cubic root of 628920632 is about 856.7720310952.

The spelling of 628920632 in words is "six hundred twenty-eight million, nine hundred twenty thousand, six hundred thirty-two".