264399674 has 64 divisors (see below), whose sum is σ = 546435072. Its totient is φ = 92716800.

The previous prime is 264399673. The next prime is 264399679. The reversal of 264399674 is 476993462.

It is a super-2 number, since 2×264399674² = 139814375222612552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264399673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58019 + ... + 62409.

It is an arithmetic number, because the mean of its divisors is an integer number (8538048).

Almost surely, 2^264399674 is an apocalyptic number.

264399674 is an abundant number, since it is smaller than the sum of its proper divisors (282035398).

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

264399674 is a wasteful number, since it uses less digits than its factorization.

264399674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451.

The product of its digits is 1959552, while the sum is 50.

The square root of 264399674 is about 16260.3712749740. The cubic root of 264399674 is about 641.8304320821.

The spelling of 264399674 in words is "two hundred sixty-four million, three hundred ninety-nine thousand, six hundred seventy-four".