631348224 has 88 divisors (see below), whose sum is σ = 1812331920. Its totient is φ = 194248704.

The previous prime is 631348181. The next prime is 631348247. The reversal of 631348224 is 422843136.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32032 + ... + 47840.

Almost surely, 2^631348224 is an apocalyptic number.

631348224 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 631348224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (906165960).

631348224 is an abundant number, since it is smaller than the sum of its proper divisors (1180983696).

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

631348224 is a wasteful number, since it uses less digits than its factorization.

631348224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15845 (or 15827 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 631348224 is about 25126.6437074274. The cubic root of 631348224 is about 857.8729768869.

The spelling of 631348224 in words is "six hundred thirty-one million, three hundred forty-eight thousand, two hundred twenty-four".