15214242 has 32 divisors (see below), whose sum is σ = 31670784. Its totient is φ = 4867200.

The previous prime is 15214189. The next prime is 15214249. The reversal of 15214242 is 24241251.

It is not an unprimeable number, because it can be changed into a prime (15214249) 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, 28942 + ... + 29462.

It is an arithmetic number, because the mean of its divisors is an integer number (989712).

Almost surely, 2^15214242 is an apocalyptic number.

15214242 is an abundant number, since it is smaller than the sum of its proper divisors (16456542).

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

15214242 is a wasteful number, since it uses less digits than its factorization.

15214242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714.

The product of its digits is 640, while the sum is 21.

The square root of 15214242 is about 3900.5438082401. The cubic root of 15214242 is about 247.7898084624.

Adding to 15214242 its reverse (24241251), we get a palindrome (39455493).

The spelling of 15214242 in words is "fifteen million, two hundred fourteen thousand, two hundred forty-two".