264630890 has 8 divisors (see below), whose sum is σ = 476335620. Its totient is φ = 105852352.

The previous prime is 264630889. The next prime is 264630929. The reversal of 264630890 is 98036462.

It can be written as a sum of positive squares in 2 ways, for example, as 246898369 + 17732521 = 15713^2 + 4211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 13231535 + ... + 13231554.

Almost surely, 2^264630890 is an apocalyptic number.

264630890 is a deficient number, since it is larger than the sum of its proper divisors (211704730).

264630890 is a wasteful number, since it uses less digits than its factorization.

264630890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26463096.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 264630890 is about 16267.4795220403. The cubic root of 264630890 is about 642.0174699167.

The spelling of 264630890 in words is "two hundred sixty-four million, six hundred thirty thousand, eight hundred ninety".