15240252 has 24 divisors (see below), whose sum is σ = 35929936. Its totient is φ = 5027328.

The previous prime is 15240229. The next prime is 15240257. The reversal of 15240252 is 25204251.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15240257) 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 7 ways as a sum of consecutive naturals, for example, 5383 + ... + 7710.

Almost surely, 2^15240252 is an apocalyptic number.

15240252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15240252 is an abundant number, since it is smaller than the sum of its proper divisors (20689684).

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

15240252 is a wasteful number, since it uses less digits than its factorization.

15240252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13197 (or 13195 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 15240252 is about 3903.8765349329. The cubic root of 15240252 is about 247.9309337677.

It can be divided in two parts, 152 and 40252, that added together give a palindrome (40404).

The spelling of 15240252 in words is "fifteen million, two hundred forty thousand, two hundred fifty-two".