631044 has 24 divisors (see below), whose sum is σ = 1636320. Its totient is φ = 210312.

The previous prime is 631039. The next prime is 631061. The reversal of 631044 is 440136.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 2814 + ... + 3029.

It is an arithmetic number, because the mean of its divisors is an integer number (68180).

2⁶³¹⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

631044 is an abundant number, since it is smaller than the sum of its proper divisors (1005276).

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

631044 is a wasteful number, since it uses less digits than its factorization.

631044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856 (or 5848 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 631044 is about 794.3827792695. The cubic root of 631044 is about 85.7735162038.

The spelling of 631044 in words is "six hundred thirty-one thousand, forty-four".