22415442 has 24 divisors (see below), whose sum is σ = 52150896. Its totient is φ = 6404328.

The previous prime is 22415423. The next prime is 22415447. The reversal of 22415442 is 24451422.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22415447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37828 + ... + 38415.

It is an arithmetic number, because the mean of its divisors is an integer number (2172954).

Almost surely, 2^22415442 is an apocalyptic number.

22415442 is an abundant number, since it is smaller than the sum of its proper divisors (29735454).

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

22415442 is a wasteful number, since it uses less digits than its factorization.

22415442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76262 (or 76255 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 22415442 is about 4734.4949044222. The cubic root of 22415442 is about 281.9567108241.

Adding to 22415442 its reverse (24451422), we get a palindrome (46866864).

The spelling of 22415442 in words is "twenty-two million, four hundred fifteen thousand, four hundred forty-two".