22279085 has 16 divisors (see below), whose sum is σ = 27268272. Its totient is φ = 17472000.

The previous prime is 22279079. The next prime is 22279087. The reversal of 22279085 is 58097222.

It can be written as a sum of positive squares in 8 ways, for example, as 925444 + 21353641 = 962^2 + 4621^2 .

It is not a de Polignac number, because 22279085 - 2⁶ = 22279021 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 (22279087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79145 + ... + 79425.

It is an arithmetic number, because the mean of its divisors is an integer number (1704267).

Almost surely, 2^22279085 is an apocalyptic number.

It is an amenable number.

22279085 is a deficient number, since it is larger than the sum of its proper divisors (4989187).

22279085 is a wasteful number, since it uses less digits than its factorization.

22279085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 22279085 is about 4720.0725630015. The cubic root of 22279085 is about 281.3838171435.

The spelling of 22279085 in words is "twenty-two million, two hundred seventy-nine thousand, eighty-five".