630532628 has 36 divisors (see below), whose sum is σ = 1218698208. Its totient is φ = 283062240.

The previous prime is 630532621. The next prime is 630532631. The reversal of 630532628 is 826235036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630532621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1690250 + ... + 1690622.

It is an arithmetic number, because the mean of its divisors is an integer number (33852728).

Almost surely, 2^630532628 is an apocalyptic number.

It is an amenable number.

630532628 is a deficient number, since it is larger than the sum of its proper divisors (588165580).

630532628 is a wasteful number, since it uses less digits than its factorization.

630532628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 630532628 is about 25110.4087581226. The cubic root of 630532628 is about 857.5034083735.

The spelling of 630532628 in words is "six hundred thirty million, five hundred thirty-two thousand, six hundred twenty-eight".