631285248 has 80 divisors (see below), whose sum is σ = 1834721856. Its totient is φ = 191293440.

The previous prime is 631285243. The next prime is 631285261. The reversal of 631285248 is 842582136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631285243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786 + ... + 35577.

Almost surely, 2^631285248 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 631285248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917360928).

631285248 is an abundant number, since it is smaller than the sum of its proper divisors (1203436608).

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

631285248 is a wasteful number, since it uses less digits than its factorization.

631285248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37395 (or 37379 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 631285248 is about 25125.3905044280. The cubic root of 631285248 is about 857.8444521083.

The spelling of 631285248 in words is "six hundred thirty-one million, two hundred eighty-five thousand, two hundred forty-eight".