630158464 has 64 divisors (see below), whose sum is σ = 1383560640. Its totient is φ = 284046336.

The previous prime is 630158449. The next prime is 630158467. The reversal of 630158464 is 464851036.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (630158467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67149 + ... + 75955.

It is an arithmetic number, because the mean of its divisors is an integer number (21618135).

Almost surely, 2^630158464 is an apocalyptic number.

630158464 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 630158464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691780320).

630158464 is an abundant number, since it is smaller than the sum of its proper divisors (753402176).

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

630158464 is a wasteful number, since it uses less digits than its factorization.

630158464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8877 (or 8865 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 630158464 is about 25102.9572759864. The cubic root of 630158464 is about 857.3337579455. Note that the first 3 decimals are identical.

The spelling of 630158464 in words is "six hundred thirty million, one hundred fifty-eight thousand, four hundred sixty-four".