22723285 has 8 divisors (see below), whose sum is σ = 29365560. Its totient is φ = 16780224.

The previous prime is 22723277. The next prime is 22723289. The reversal of 22723285 is 58232722.

It can be written as a sum of positive squares in 4 ways, for example, as 463761 + 22259524 = 681^2 + 4718^2 .

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 22723285 - 2³ = 22723277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22723289) 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, 174730 + ... + 174859.

It is an arithmetic number, because the mean of its divisors is an integer number (3670695).

Almost surely, 2^22723285 is an apocalyptic number.

It is an amenable number.

22723285 is a deficient number, since it is larger than the sum of its proper divisors (6642275).

22723285 is a wasteful number, since it uses less digits than its factorization.

22723285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349607.

The product of its digits is 13440, while the sum is 31.

The square root of 22723285 is about 4766.8946915156. The cubic root of 22723285 is about 283.2415996763.

The spelling of 22723285 in words is "twenty-two million, seven hundred twenty-three thousand, two hundred eighty-five".