268631957 has 8 divisors (see below), whose sum is σ = 302506752. Its totient is φ = 236332800.

The previous prime is 268631947. The next prime is 268631981. The reversal of 268631957 is 759136862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 268631957 - 2⁶ = 268631893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268631947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393548 + ... + 394229.

It is an arithmetic number, because the mean of its divisors is an integer number (37813344).

Almost surely, 2^268631957 is an apocalyptic number.

It is an amenable number.

268631957 is a deficient number, since it is larger than the sum of its proper divisors (33874795).

268631957 is a wasteful number, since it uses less digits than its factorization.

268631957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787819.

The product of its digits is 544320, while the sum is 47.

The square root of 268631957 is about 16389.9956375833. The cubic root of 268631957 is about 645.2369435742.

It can be divided in two parts, 2686 and 31957, that added together give a palindrome (34643).

The spelling of 268631957 in words is "two hundred sixty-eight million, six hundred thirty-one thousand, nine hundred fifty-seven".