15229242 has 32 divisors (see below), whose sum is σ = 38678400. Its totient is φ = 4351104.

The previous prime is 15229223. The next prime is 15229259. The reversal of 15229242 is 24292251.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 19767 + ... + 20522.

It is an arithmetic number, because the mean of its divisors is an integer number (1208700).

Almost surely, 2^15229242 is an apocalyptic number.

15229242 is an abundant number, since it is smaller than the sum of its proper divisors (23449158).

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

15229242 is a wasteful number, since it uses less digits than its factorization.

15229242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40307 (or 40301 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 15229242 is about 3902.4661433509. The cubic root of 15229242 is about 247.8712152191.

The spelling of 15229242 in words is "fifteen million, two hundred twenty-nine thousand, two hundred forty-two".