15622242 has 16 divisors (see below), whose sum is σ = 32322240. Its totient is φ = 5027792.

The previous prime is 15622241. The next prime is 15622261. The reversal of 15622242 is 24222651.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15622241) by changing a digit.

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, 44718 + ... + 45065.

It is an arithmetic number, because the mean of its divisors is an integer number (2020140).

Almost surely, 2^15622242 is an apocalyptic number.

15622242 is an abundant number, since it is smaller than the sum of its proper divisors (16699998).

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

15622242 is a wasteful number, since it uses less digits than its factorization.

15622242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89817.

The product of its digits is 1920, while the sum is 24.

The square root of 15622242 is about 3952.4981973430. The cubic root of 15622242 is about 249.9852898011.

Adding to 15622242 its reverse (24222651), we get a palindrome (39844893).

The spelling of 15622242 in words is "fifteen million, six hundred twenty-two thousand, two hundred forty-two".