264642464 has 12 divisors (see below), whose sum is σ = 521014914. Its totient is φ = 132321216.

The previous prime is 264642437. The next prime is 264642467. The reversal of 264642464 is 464246462.

It can be written as a sum of positive squares in only one way, i.e., 141610000 + 123032464 = 11900^2 + 11092^2 .

It is not an unprimeable number, because it can be changed into a prime (264642467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4135007 + ... + 4135070.

Almost surely, 2^264642464 is an apocalyptic number.

It is an amenable number.

264642464 is a deficient number, since it is larger than the sum of its proper divisors (256372450).

264642464 is an equidigital number, since it uses as much as digits as its factorization.

264642464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270087 (or 8270079 counting only the distinct ones).

The product of its digits is 221184, while the sum is 38.

The square root of 264642464 is about 16267.8352585708. The cubic root of 264642464 is about 642.0268296225.

The spelling of 264642464 in words is "two hundred sixty-four million, six hundred forty-two thousand, four hundred sixty-four".