22404485 has 4 divisors (see below), whose sum is σ = 26885388. Its totient is φ = 17923584.

The previous prime is 22404469. The next prime is 22404493. The reversal of 22404485 is 58440422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4418404 + 17986081 = 2102^2 + 4241^2 .

It is a cyclic number.

It is not a de Polignac number, because 22404485 - 2⁴ = 22404469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240444 + ... + 2240453.

It is an arithmetic number, because the mean of its divisors is an integer number (6721347).

Almost surely, 2^22404485 is an apocalyptic number.

It is an amenable number.

22404485 is a deficient number, since it is larger than the sum of its proper divisors (4480903).

22404485 is an equidigital number, since it uses as much as digits as its factorization.

22404485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480902.

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 22404485 is about 4733.3376173690. The cubic root of 22404485 is about 281.9107617978.

The spelling of 22404485 in words is "twenty-two million, four hundred four thousand, four hundred eighty-five".