268405953 has 16 divisors (see below), whose sum is σ = 364197120. Its totient is φ = 175790736.

The previous prime is 268405937. The next prime is 268405987. The reversal of 268405953 is 359504862.

It is not a de Polignac number, because 268405953 - 2⁴ = 268405937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268405903) 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, 82626 + ... + 85812.

It is an arithmetic number, because the mean of its divisors is an integer number (22762320).

Almost surely, 2^268405953 is an apocalyptic number.

It is an amenable number.

268405953 is a deficient number, since it is larger than the sum of its proper divisors (95791167).

268405953 is a wasteful number, since it uses less digits than its factorization.

268405953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 268405953 is about 16383.0996151522. The cubic root of 268405953 is about 645.0559437084.

The spelling of 268405953 in words is "two hundred sixty-eight million, four hundred five thousand, nine hundred fifty-three".