22370905 has 4 divisors (see below), whose sum is σ = 26845092. Its totient is φ = 17896720.

The previous prime is 22370899. The next prime is 22370911. The reversal of 22370905 is 50907322.

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

It is an interprime number because it is at equal distance from previous prime (22370899) and next prime (22370911).

It can be written as a sum of positive squares in 2 ways, for example, as 3474496 + 18896409 = 1864^2 + 4347^2 .

It is not a de Polignac number, because 22370905 - 2³ = 22370897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237086 + ... + 2237095.

It is an arithmetic number, because the mean of its divisors is an integer number (6711273).

Almost surely, 2^22370905 is an apocalyptic number.

It is an amenable number.

22370905 is a deficient number, since it is larger than the sum of its proper divisors (4474187).

22370905 is an equidigital number, since it uses as much as digits as its factorization.

22370905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474186.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 22370905 is about 4729.7891073493. The cubic root of 22370905 is about 281.7698480947.

The spelling of 22370905 in words is "twenty-two million, three hundred seventy thousand, nine hundred five".