15422142 has 32 divisors (see below), whose sum is σ = 32453280. Its totient is φ = 4878720.

The previous prime is 15422119. The next prime is 15422149. The reversal of 15422142 is 24122451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15422149) 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, 9888 + ... + 11340.

It is an arithmetic number, because the mean of its divisors is an integer number (1014165).

Almost surely, 2^15422142 is an apocalyptic number.

15422142 is an abundant number, since it is smaller than the sum of its proper divisors (17031138).

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

15422142 is a wasteful number, since it uses less digits than its factorization.

15422142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548.

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

The square root of 15422142 is about 3927.1035127687. The cubic root of 15422142 is about 248.9133744895.

Adding to 15422142 its reverse (24122451), we get a palindrome (39544593).

The spelling of 15422142 in words is "fifteen million, four hundred twenty-two thousand, one hundred forty-two".