631120272 has 80 divisors (see below), whose sum is σ = 1699980480. Its totient is φ = 201510400.

The previous prime is 631120249. The next prime is 631120279. The reversal of 631120272 is 272021136.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (631120279) 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, 180622 + ... + 184082.

It is an arithmetic number, because the mean of its divisors is an integer number (21249756).

Almost surely, 2^631120272 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 631120272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849990240).

631120272 is an abundant number, since it is smaller than the sum of its proper divisors (1068860208).

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

631120272 is a wasteful number, since it uses less digits than its factorization.

631120272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3626 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 631120272 is about 25122.1072364561. The cubic root of 631120272 is about 857.7697177591.

The spelling of 631120272 in words is "six hundred thirty-one million, one hundred twenty thousand, two hundred seventy-two".