630340688 has 40 divisors (see below), whose sum is σ = 1320665472. Its totient is φ = 290313728.

The previous prime is 630340687. The next prime is 630340717. The reversal of 630340688 is 886043036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630340681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11870 + ... + 37437.

Almost surely, 2^630340688 is an apocalyptic number.

630340688 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

630340688 is an abundant number, since it is smaller than the sum of its proper divisors (690324784).

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

630340688 is a wasteful number, since it uses less digits than its factorization.

630340688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49379 (or 49373 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 630340688 is about 25106.5865461635. The cubic root of 630340688 is about 857.4163888705.

The spelling of 630340688 in words is "six hundred thirty million, three hundred forty thousand, six hundred eighty-eight".