264020889 has 8 divisors (see below), whose sum is σ = 384030432. Its totient is φ = 160012640.

The previous prime is 264020879. The next prime is 264020891. The reversal of 264020889 is 988020462.

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

It is a cyclic number.

It is not a de Polignac number, because 264020889 - 2⁵ = 264020857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264020879) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4000284 + ... + 4000349.

It is an arithmetic number, because the mean of its divisors is an integer number (48003804).

Almost surely, 2^264020889 is an apocalyptic number.

It is an amenable number.

264020889 is a deficient number, since it is larger than the sum of its proper divisors (120009543).

264020889 is a wasteful number, since it uses less digits than its factorization.

264020889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000647.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 264020889 is about 16248.7196110955. The cubic root of 264020889 is about 641.5237852965.

The spelling of 264020889 in words is "two hundred sixty-four million, twenty thousand, eight hundred eighty-nine".