22944407 has 4 divisors (see below), whose sum is σ = 24294096. Its totient is φ = 21594720.

The previous prime is 22944401. The next prime is 22944421. The reversal of 22944407 is 70444922.

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

It is a cyclic number.

It is not a de Polignac number, because 22944407 - 2⁸ = 22944151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22944401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674819 + ... + 674852.

It is an arithmetic number, because the mean of its divisors is an integer number (6073524).

Almost surely, 2^22944407 is an apocalyptic number.

22944407 is a deficient number, since it is larger than the sum of its proper divisors (1349689).

22944407 is a wasteful number, since it uses less digits than its factorization.

22944407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349688.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 22944407 is about 4790.0320458218. The cubic root of 22944407 is about 284.1573840024.

The spelling of 22944407 in words is "twenty-two million, nine hundred forty-four thousand, four hundred seven".