15224868 has 48 divisors (see below), whose sum is σ = 40136320. Its totient is φ = 4989600.

The previous prime is 15224863. The next prime is 15224897. The reversal of 15224868 is 86842251.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (15224863) 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, 5433 + ... + 7743.

Almost surely, 2^15224868 is an apocalyptic number.

15224868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15224868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20068160).

15224868 is an abundant number, since it is smaller than the sum of its proper divisors (24911452).

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

15224868 is a wasteful number, since it uses less digits than its factorization.

15224868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385 (or 2377 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 15224868 is about 3901.9056882503. The cubic root of 15224868 is about 247.8474825319.

The spelling of 15224868 in words is "fifteen million, two hundred twenty-four thousand, eight hundred sixty-eight".