15222342 has 16 divisors (see below), whose sum is σ = 31019760. Its totient is φ = 4978272.

The previous prime is 15222323. The next prime is 15222371. The reversal of 15222342 is 24322251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23617 + ... + 24252.

It is an arithmetic number, because the mean of its divisors is an integer number (1938735).

Almost surely, 2^15222342 is an apocalyptic number.

15222342 is an abundant number, since it is smaller than the sum of its proper divisors (15797418).

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

15222342 is a wasteful number, since it uses less digits than its factorization.

15222342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47927.

The product of its digits is 960, while the sum is 21.

The square root of 15222342 is about 3901.5819868356. The cubic root of 15222342 is about 247.8337747532.

Adding to 15222342 its reverse (24322251), we get a palindrome (39544593).

Subtracting 15222342 from its reverse (24322251), we obtain a palindrome (9099909).

The spelling of 15222342 in words is "fifteen million, two hundred twenty-two thousand, three hundred forty-two".