268012590 has 64 divisors (see below), whose sum is σ = 654350400. Its totient is φ = 70246400.

The previous prime is 268012541. The next prime is 268012601. The reversal of 268012590 is 95210862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 596686 + ... + 597134.

It is an arithmetic number, because the mean of its divisors is an integer number (10224225).

Almost surely, 2^268012590 is an apocalyptic number.

268012590 is an abundant number, since it is smaller than the sum of its proper divisors (386337810).

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

268012590 is a wasteful number, since it uses less digits than its factorization.

268012590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 268012590 is about 16371.0900675551. The cubic root of 268012590 is about 644.7406685362.

The spelling of 268012590 in words is "two hundred sixty-eight million, twelve thousand, five hundred ninety".