15485664 has 24 divisors (see below), whose sum is σ = 40650120. Its totient is φ = 5161856.

The previous prime is 15485653. The next prime is 15485669. The reversal of 15485664 is 46658451.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15485669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80559 + ... + 80750.

It is an arithmetic number, because the mean of its divisors is an integer number (1693755).

Almost surely, 2^15485664 is an apocalyptic number.

It is an amenable number.

15485664 is an abundant number, since it is smaller than the sum of its proper divisors (25164456).

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

15485664 is a wasteful number, since it uses less digits than its factorization.

15485664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161322 (or 161314 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 15485664 is about 3935.1828420037. The cubic root of 15485664 is about 249.2546547167.

The spelling of 15485664 in words is "fifteen million, four hundred eighty-five thousand, six hundred sixty-four".