22442805 has 128 divisors (see below), whose sum is σ = 53084160. Its totient is φ = 8709120.

The previous prime is 22442753. The next prime is 22442837. The reversal of 22442805 is 50824422.

It is a happy number.

It is not a de Polignac number, because 22442805 - 2¹² = 22438709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 176652 + ... + 176778.

It is an arithmetic number, because the mean of its divisors is an integer number (414720).

Almost surely, 2^22442805 is an apocalyptic number.

It is an amenable number.

22442805 is an abundant number, since it is smaller than the sum of its proper divisors (30641355).

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

22442805 is a wasteful number, since it uses less digits than its factorization.

22442805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 22442805 is about 4737.3837716613. The cubic root of 22442805 is about 282.0713943273.

The spelling of 22442805 in words is "twenty-two million, four hundred forty-two thousand, eight hundred five".