22905939 has 8 divisors (see below), whose sum is σ = 34904320. Its totient is φ = 13089096.

The previous prime is 22905881. The next prime is 22905941. The reversal of 22905939 is 93950922.

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

It is not a de Polignac number, because 22905939 - 2¹¹ = 22903891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22905897 and 22905906.

It is not an unprimeable number, because it can be changed into a prime (22905979) 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, 545359 + ... + 545400.

It is an arithmetic number, because the mean of its divisors is an integer number (4363040).

Almost surely, 2^22905939 is an apocalyptic number.

22905939 is a deficient number, since it is larger than the sum of its proper divisors (11998381).

22905939 is a wasteful number, since it uses less digits than its factorization.

22905939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090769.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 22905939 is about 4786.0149393833. The cubic root of 22905939 is about 283.9984915281.

The spelling of 22905939 in words is "twenty-two million, nine hundred five thousand, nine hundred thirty-nine".