15223488 has 112 divisors (see below), whose sum is σ = 47207424. Its totient is φ = 4239360.

The previous prime is 15223487. The next prime is 15223489. The reversal of 15223488 is 88432251.

It is an interprime number because it is at equal distance from previous prime (15223487) and next prime (15223489).

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×15223488² = 463509173772288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15223487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63048 + ... + 63288.

Almost surely, 2^15223488 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 15223488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23603712).

15223488 is an abundant number, since it is smaller than the sum of its proper divisors (31983936).

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

15223488 is a wasteful number, since it uses less digits than its factorization.

15223488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 300 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 15223488 is about 3901.7288475751. The cubic root of 15223488 is about 247.8399939096.

The spelling of 15223488 in words is "fifteen million, two hundred twenty-three thousand, four hundred eighty-eight".