22404219 has 16 divisors (see below), whose sum is σ = 30336768. Its totient is φ = 14706272.

The previous prime is 22404209. The next prime is 22404229. The reversal of 22404219 is 91240422.

It is an interprime number because it is at equal distance from previous prime (22404209) and next prime (22404229).

It is a cyclic number.

It is not a de Polignac number, because 22404219 - 2⁷ = 22404091 is a prime.

It is a super-2 number, since 2×22404219² = 1003898057999922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22404209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98584 + ... + 98810.

It is an arithmetic number, because the mean of its divisors is an integer number (1896048).

Almost surely, 2^22404219 is an apocalyptic number.

22404219 is a deficient number, since it is larger than the sum of its proper divisors (7932549).

22404219 is a wasteful number, since it uses less digits than its factorization.

22404219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22404219 is about 4733.3095187194. The cubic root of 22404219 is about 281.9096461200.

The spelling of 22404219 in words is "twenty-two million, four hundred four thousand, two hundred nineteen".