631057000 has 128 divisors (see below), whose sum is σ = 1787235840. Its totient is φ = 203596800.

The previous prime is 631056997. The next prime is 631057033. The reversal of 631057000 is 750136.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116349 + ... + 121651.

It is an arithmetic number, because the mean of its divisors is an integer number (13962780).

Almost surely, 2^631057000 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 631057000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (893617920).

631057000 is an abundant number, since it is smaller than the sum of its proper divisors (1156178840).

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

631057000 is a wasteful number, since it uses less digits than its factorization.

631057000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348 (or 5334 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 631057000 is about 25120.8479156258. The cubic root of 631057000 is about 857.7410520030.

The spelling of 631057000 in words is "six hundred thirty-one million, fifty-seven thousand".