15342242 has 16 divisors (see below), whose sum is σ = 24425280. Its totient is φ = 7211952.

The previous prime is 15342233. The next prime is 15342251. The reversal of 15342242 is 24224351.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15342233) and next prime (15342251).

It is a Harshad number since it is a multiple of its sum of digits (23).

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 7 ways as a sum of consecutive naturals, for example, 113 + ... + 5540.

It is an arithmetic number, because the mean of its divisors is an integer number (1526580).

Almost surely, 2^15342242 is an apocalyptic number.

15342242 is a deficient number, since it is larger than the sum of its proper divisors (9083038).

15342242 is a wasteful number, since it uses less digits than its factorization.

15342242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5737.

The product of its digits is 1920, while the sum is 23.

The square root of 15342242 is about 3916.9174104134. The cubic root of 15342242 is about 248.4827679889.

Adding to 15342242 its reverse (24224351), we get a palindrome (39566593).

The spelling of 15342242 in words is "fifteen million, three hundred forty-two thousand, two hundred forty-two".