22775239 has 8 divisors (see below), whose sum is σ = 23789520. Its totient is φ = 21782016.

The previous prime is 22775231. The next prime is 22775261. The reversal of 22775239 is 93257722.

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 22775239 - 2³ = 22775231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 22775198 and 22775207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22775231) 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, 3034 + ... + 7399.

It is an arithmetic number, because the mean of its divisors is an integer number (2973690).

Almost surely, 2^22775239 is an apocalyptic number.

22775239 is a deficient number, since it is larger than the sum of its proper divisors (1014281).

22775239 is a wasteful number, since it uses less digits than its factorization.

22775239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529.

The product of its digits is 52920, while the sum is 37.

The square root of 22775239 is about 4772.3410397833. The cubic root of 22775239 is about 283.4573010770.

It can be divided in two parts, 227 and 75239, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 22775239 in words is "twenty-two million, seven hundred seventy-five thousand, two hundred thirty-nine".