631336080 has 80 divisors (see below), whose sum is σ = 2020299264. Its totient is φ = 162923520.

The previous prime is 631336073. The next prime is 631336087. The reversal of 631336080 is 80633136.

It is an interprime number because it is at equal distance from previous prime (631336073) and next prime (631336087).

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 not an unprimeable number, because it can be changed into a prime (631336087) 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, 34989 + ... + 49868.

Almost surely, 2^631336080 is an apocalyptic number.

631336080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

631336080 is an abundant number, since it is smaller than the sum of its proper divisors (1388963184).

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

631336080 is a wasteful number, since it uses less digits than its factorization.

631336080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84904 (or 84898 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 631336080 is about 25126.4020504329. The cubic root of 631336080 is about 857.8674764484.

The spelling of 631336080 in words is "six hundred thirty-one million, three hundred thirty-six thousand, eighty".