264244636 has 24 divisors (see below), whose sum is σ = 479556000. Its totient is φ = 127251264.

The previous prime is 264244567. The next prime is 264244637. The reversal of 264244636 is 636442462.

It is a junction number, because it is equal to n+sod(n) for n = 264244595 and 264244604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264244637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48330 + ... + 53518.

It is an arithmetic number, because the mean of its divisors is an integer number (19981500).

Almost surely, 2^264244636 is an apocalyptic number.

It is an amenable number.

264244636 is a deficient number, since it is larger than the sum of its proper divisors (215311364).

264244636 is a wasteful number, since it uses less digits than its factorization.

264244636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661 (or 5659 counting only the distinct ones).

The product of its digits is 165888, while the sum is 37.

The square root of 264244636 is about 16255.6032185828. The cubic root of 264244636 is about 641.7049559281.

It can be divided in two parts, 2642 and 44636, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 264244636 in words is "two hundred sixty-four million, two hundred forty-four thousand, six hundred thirty-six".