264456648 has 24 divisors (see below), whose sum is σ = 716236950. Its totient is φ = 88152192.

The previous prime is 264456617. The next prime is 264456659. The reversal of 264456648 is 846654462.

264456648 is a `hidden beast` number, since 2 + 6 + 44 + 566 + 48 = 666.

264456648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 248440644 + 16016004 = 15762^2 + 4002^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1836433 + ... + 1836576.

Almost surely, 2^264456648 is an apocalyptic number.

It is an amenable number.

264456648 is an abundant number, since it is smaller than the sum of its proper divisors (451780302).

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

264456648 is a wasteful number, since it uses less digits than its factorization.

264456648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673021 (or 3673014 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 264456648 is about 16262.1231086227. The cubic root of 264456648 is about 641.8765302488.

The spelling of 264456648 in words is "two hundred sixty-four million, four hundred fifty-six thousand, six hundred forty-eight".