22440605 has 8 divisors (see below), whose sum is σ = 29376864. Its totient is φ = 16320400.

The previous prime is 22440599. The next prime is 22440623. The reversal of 22440605 is 50604422.

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

It is not a de Polignac number, because 22440605 - 2⁶ = 22440541 is a prime.

It is a super-3 number, since 3×22440605³ (a number of 23 digits) contains 333 as substring.

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, 203951 + ... + 204060.

It is an arithmetic number, because the mean of its divisors is an integer number (3672108).

Almost surely, 2^22440605 is an apocalyptic number.

It is an amenable number.

22440605 is a deficient number, since it is larger than the sum of its proper divisors (6936259).

22440605 is a wasteful number, since it uses less digits than its factorization.

22440605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408027.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 22440605 is about 4737.1515703004. The cubic root of 22440605 is about 282.0621771588.

The spelling of 22440605 in words is "twenty-two million, four hundred forty thousand, six hundred five".