631578048 has 56 divisors (see below), whose sum is σ = 1687647120. Its totient is φ = 208435200.

The previous prime is 631578047. The next prime is 631578127. The reversal of 631578048 is 840875136.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631578043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3108 + ... + 35676.

Almost surely, 2^631578048 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 631578048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (843823560).

631578048 is an abundant number, since it is smaller than the sum of its proper divisors (1056069072).

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

631578048 is a wasteful number, since it uses less digits than its factorization.

631578048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32685 (or 32675 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 631578048 is about 25131.2166040564. The cubic root of 631578048 is about 857.9770588462.

The spelling of 631578048 in words is "six hundred thirty-one million, five hundred seventy-eight thousand, forty-eight".