631242276 has 48 divisors (see below), whose sum is σ = 1693676544. Its totient is φ = 179244576.

The previous prime is 631242179. The next prime is 631242277. The reversal of 631242276 is 672242136.

It is a super-2 number, since 2×631242276² = 796933622019320352, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (631242277) 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, 9360 + ... + 36743.

It is an arithmetic number, because the mean of its divisors is an integer number (35284928).

Almost surely, 2^631242276 is an apocalyptic number.

It is an amenable number.

631242276 is an abundant number, since it is smaller than the sum of its proper divisors (1062434268).

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

631242276 is a wasteful number, since it uses less digits than its factorization.

631242276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46280 (or 46278 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 631242276 is about 25124.5353389869. The cubic root of 631242276 is about 857.8249869888.

The spelling of 631242276 in words is "six hundred thirty-one million, two hundred forty-two thousand, two hundred seventy-six".