631460000 has 60 divisors (see below), whose sum is σ = 1553535522. Its totient is φ = 252576000.

The previous prime is 631459991. The next prime is 631460017. The reversal of 631460000 is 64136.

It can be written as a sum of positive squares in 5 ways, for example, as 3857296 + 627602704 = 1964^2 + 25052^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4214 + ... + 35786.

Almost surely, 2^631460000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631460000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776767761).

631460000 is an abundant number, since it is smaller than the sum of its proper divisors (922075522).

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

631460000 is an equidigital number, since it uses as much as digits as its factorization.

631460000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31603 (or 31580 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 631460000 is about 25128.8678614855. The cubic root of 631460000 is about 857.9236007993.

The spelling of 631460000 in words is "six hundred thirty-one million, four hundred sixty thousand".