15220248 has 16 divisors (see below), whose sum is σ = 38050680. Its totient is φ = 5073408.

The previous prime is 15220243. The next prime is 15220267. The reversal of 15220248 is 84202251.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 634177 = 15220248 / (1 + 5 + 2 + 2 + 0 + 2 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15220241) 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, 317065 + ... + 317112.

Almost surely, 2^15220248 is an apocalyptic number.

It is an amenable number.

15220248 is an abundant number, since it is smaller than the sum of its proper divisors (22830432).

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

15220248 is a wasteful number, since it uses less digits than its factorization.

15220248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634186 (or 634182 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 15220248 is about 3901.3136249217. The cubic root of 15220248 is about 247.8224101479.

Adding to 15220248 its reverse (84202251), we get a palindrome (99422499).

The spelling of 15220248 in words is "fifteen million, two hundred twenty thousand, two hundred forty-eight".