22390907 has 8 divisors (see below), whose sum is σ = 27916032. Its totient is φ = 17447400.

The previous prime is 22390829. The next prime is 22390919. The reversal of 22390907 is 70909322.

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

It is a cyclic number.

It is not a de Polignac number, because 22390907 - 2¹⁰ = 22389883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22390997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145319 + ... + 145472.

It is an arithmetic number, because the mean of its divisors is an integer number (3489504).

Almost surely, 2^22390907 is an apocalyptic number.

22390907 is a deficient number, since it is larger than the sum of its proper divisors (5525125).

22390907 is a wasteful number, since it uses less digits than its factorization.

22390907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290809.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 22390907 is about 4731.9031055168. The cubic root of 22390907 is about 281.8538006158.

The spelling of 22390907 in words is "twenty-two million, three hundred ninety thousand, nine hundred seven".