15244664 has 8 divisors (see below), whose sum is σ = 28583760. Its totient is φ = 7622328.

The previous prime is 15244651. The next prime is 15244667. The reversal of 15244664 is 46644251.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 15244664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15244667) 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 as a sum of consecutive naturals, namely, 952784 + ... + 952799.

It is an arithmetic number, because the mean of its divisors is an integer number (3572970).

Almost surely, 2^15244664 is an apocalyptic number.

It is an amenable number.

15244664 is a deficient number, since it is larger than the sum of its proper divisors (13339096).

15244664 is a wasteful number, since it uses less digits than its factorization.

15244664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905589 (or 1905585 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 15244664 is about 3904.4415733879. The cubic root of 15244664 is about 247.9548565073.

The spelling of 15244664 in words is "fifteen million, two hundred forty-four thousand, six hundred sixty-four".