22504022 has 8 divisors (see below), whose sum is σ = 35741736. Its totient is φ = 10590112.

The previous prime is 22503979. The next prime is 22504043. The reversal of 22504022 is 22040522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330908 + ... + 330975.

It is an arithmetic number, because the mean of its divisors is an integer number (4467717).

Almost surely, 2^22504022 is an apocalyptic number.

22504022 is a deficient number, since it is larger than the sum of its proper divisors (13237714).

22504022 is a wasteful number, since it uses less digits than its factorization.

22504022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661902.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22504022 is about 4743.8404273331. The cubic root of 22504022 is about 282.3276292039.

Adding to 22504022 its reverse (22040522), we get a palindrome (44544544).

The spelling of 22504022 in words is "twenty-two million, five hundred four thousand, twenty-two".