22097408 has 20 divisors (see below), whose sum is σ = 44152680. Its totient is φ = 11048448.

The previous prime is 22097407. The next prime is 22097419. The reversal of 22097408 is 80479022.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22097407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21068 + ... + 22091.

It is an arithmetic number, because the mean of its divisors is an integer number (2207634).

Almost surely, 2^22097408 is an apocalyptic number.

It is an amenable number.

22097408 is a deficient number, since it is larger than the sum of its proper divisors (22055272).

22097408 is an frugal number, since it uses more digits than its factorization.

22097408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43177 (or 43161 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22097408 is about 4700.7880190453. The cubic root of 22097408 is about 280.6168712582.

The spelling of 22097408 in words is "twenty-two million, ninety-seven thousand, four hundred eight".