22453905 has 8 divisors (see below), whose sum is σ = 35926272. Its totient is φ = 11975408.

The previous prime is 22453903. The next prime is 22453913. The reversal of 22453905 is 50935422.

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 22453905 - 2¹ = 22453903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22453901) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 748449 + ... + 748478.

It is an arithmetic number, because the mean of its divisors is an integer number (4490784).

Almost surely, 2^22453905 is an apocalyptic number.

It is an amenable number.

22453905 is a deficient number, since it is larger than the sum of its proper divisors (13472367).

22453905 is a wasteful number, since it uses less digits than its factorization.

22453905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496935.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 22453905 is about 4738.5551595397. Note that the first 3 decimals coincide. The cubic root of 22453905 is about 282.1178899478.

The spelling of 22453905 in words is "twenty-two million, four hundred fifty-three thousand, nine hundred five".