264640254 has 64 divisors (see below), whose sum is σ = 578534400. Its totient is φ = 80444672.

The previous prime is 264640247. The next prime is 264640267. The reversal of 264640254 is 452046462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355807 + ... + 356549.

It is an arithmetic number, because the mean of its divisors is an integer number (9039600).

Almost surely, 2^264640254 is an apocalyptic number.

264640254 is an abundant number, since it is smaller than the sum of its proper divisors (313894146).

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

264640254 is a wasteful number, since it uses less digits than its factorization.

264640254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 264640254 is about 16267.7673329809. The cubic root of 264640254 is about 642.0250424525.

The spelling of 264640254 in words is "two hundred sixty-four million, six hundred forty thousand, two hundred fifty-four".