15323648 has 30 divisors (see below), whose sum is σ = 30795369. Its totient is φ = 7617536.

The previous prime is 15323611. The next prime is 15323663. The reversal of 15323648 is 84632351.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 12054784 + 3268864 = 3472^2 + 1808^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2768.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 88490 + ... + 88662.

Almost surely, 2^15323648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15323648

15323648 is an abundant number, since it is smaller than the sum of its proper divisors (15471721).

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

15323648 is an frugal number, since it uses more digits than its factorization.

15323648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 175 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 15323648 is about 3914.5431406487. The cubic root of 15323648 is about 248.3823446748.

Multiplying 15323648 by its sum of digits (32), we get a square (490356736 = 22144²).

15323648 divided by its sum of digits (32) gives a square (478864 = 692²).

Adding to 15323648 its reverse (84632351), we get a palindrome (99955999).

The spelling of 15323648 in words is "fifteen million, three hundred twenty-three thousand, six hundred forty-eight".