22401204 has 24 divisors (see below), whose sum is σ = 59736768. Its totient is φ = 6400320.

The previous prime is 22401193. The next prime is 22401217. The reversal of 22401204 is 40210422.

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, 133257 + ... + 133424.

It is an arithmetic number, because the mean of its divisors is an integer number (2489032).

Almost surely, 2^22401204 is an apocalyptic number.

It is an amenable number.

22401204 is an abundant number, since it is smaller than the sum of its proper divisors (37335564).

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

22401204 is a wasteful number, since it uses less digits than its factorization.

22401204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266695 (or 266693 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22401204 is about 4732.9910204859. The cubic root of 22401204 is about 281.8969997562.

Adding to 22401204 its reverse (40210422), we get a palindrome (62611626).

The spelling of 22401204 in words is "twenty-two million, four hundred one thousand, two hundred four".