630526464 has 160 divisors (see below), whose sum is σ = 1976927040. Its totient is φ = 197738496.

The previous prime is 630526427. The next prime is 630526469. The reversal of 630526464 is 464625036.

630526464 is a `hidden beast` number, since 6 + 3 + 0 + 5 + 2 + 646 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (630526469) 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, 233667 + ... + 236349.

It is an arithmetic number, because the mean of its divisors is an integer number (12355794).

Almost surely, 2^630526464 is an apocalyptic number.

630526464 is a gapful number since it is divisible by the number (64) 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 630526464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988463520).

630526464 is an abundant number, since it is smaller than the sum of its proper divisors (1346400576).

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

630526464 is a wasteful number, since it uses less digits than its factorization.

630526464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 630526464 is about 25110.2860198764. The cubic root of 630526464 is about 857.5006140861.

The spelling of 630526464 in words is "six hundred thirty million, five hundred twenty-six thousand, four hundred sixty-four".