631026256 has 20 divisors (see below), whose sum is σ = 1397272672. Its totient is φ = 270439776.

The previous prime is 631026169. The next prime is 631026257. The reversal of 631026256 is 652620136.

It is a super-2 number, since 2×631026256² = 796388271522755072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631026257) 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 3 ways as a sum of consecutive naturals, for example, 2816970 + ... + 2817193.

Almost surely, 2^631026256 is an apocalyptic number.

It is an amenable number.

631026256 is an abundant number, since it is smaller than the sum of its proper divisors (766246416).

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

631026256 is a wasteful number, since it uses less digits than its factorization.

631026256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634178 (or 5634172 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 631026256 is about 25120.2359861527. The cubic root of 631026256 is about 857.7271225591.

The spelling of 631026256 in words is "six hundred thirty-one million, twenty-six thousand, two hundred fifty-six".