268444631 has 16 divisors (see below), whose sum is σ = 336000000. Its totient is φ = 208791648.

The previous prime is 268444613. The next prime is 268444667. The reversal of 268444631 is 136444862.

It is a de Polignac number, because none of the positive numbers 2^k-268444631 is a prime.

It is a super-2 number, since 2×268444631² = 144125039825452322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268444601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19631 + ... + 30368.

It is an arithmetic number, because the mean of its divisors is an integer number (21000000).

Almost surely, 2^268444631 is an apocalyptic number.

268444631 is a deficient number, since it is larger than the sum of its proper divisors (67555369).

268444631 is a wasteful number, since it uses less digits than its factorization.

268444631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50078.

The product of its digits is 110592, while the sum is 38.

The square root of 268444631 is about 16384.2799963868. The cubic root of 268444631 is about 645.0869269699.

The spelling of 268444631 in words is "two hundred sixty-eight million, four hundred forty-four thousand, six hundred thirty-one".