264665074 has 4 divisors (see below), whose sum is σ = 396997614. Its totient is φ = 132332536.

The previous prime is 264665059. The next prime is 264665081. The reversal of 264665074 is 470566462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 137945025 + 126720049 = 11745^2 + 11257^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66166267 + ... + 66166270.

Almost surely, 2^264665074 is an apocalyptic number.

264665074 is a deficient number, since it is larger than the sum of its proper divisors (132332540).

264665074 is a wasteful number, since it uses less digits than its factorization.

264665074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132332539.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 264665074 is about 16268.5301733131. The cubic root of 264665074 is about 642.0451131751.

The spelling of 264665074 in words is "two hundred sixty-four million, six hundred sixty-five thousand, seventy-four".