630344568 has 64 divisors (see below), whose sum is σ = 1842888960. Its totient is φ = 175908096.

The previous prime is 630344557. The next prime is 630344569. The reversal of 630344568 is 865443036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630344569) 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, 36405 + ... + 50852.

It is an arithmetic number, because the mean of its divisors is an integer number (28795140).

Almost surely, 2^630344568 is an apocalyptic number.

It is an amenable number.

630344568 is an abundant number, since it is smaller than the sum of its proper divisors (1212544392).

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

630344568 is a wasteful number, since it uses less digits than its factorization.

630344568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87316 (or 87312 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 630344568 is about 25106.6638166045. The cubic root of 630344568 is about 857.4181481142.

The spelling of 630344568 in words is "six hundred thirty million, three hundred forty-four thousand, five hundred sixty-eight".