630064560 has 80 divisors (see below), whose sum is σ = 1957089024. Its totient is φ = 167682816.

The previous prime is 630064559. The next prime is 630064573. The reversal of 630064560 is 65460036.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132789 + ... + 137451.

Almost surely, 2^630064560 is an apocalyptic number.

630064560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630064560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (978544512).

630064560 is an abundant number, since it is smaller than the sum of its proper divisors (1327024464).

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

630064560 is a wasteful number, since it uses less digits than its factorization.

630064560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5242 (or 5236 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 630064560 is about 25101.0868290598. The cubic root of 630064560 is about 857.2911702086.

The spelling of 630064560 in words is "six hundred thirty million, sixty-four thousand, five hundred sixty".