22239835 has 16 divisors (see below), whose sum is σ = 27552672. Its totient is φ = 17222400.

The previous prime is 22239821. The next prime is 22239851. The reversal of 22239835 is 53893222.

It is not a de Polignac number, because 22239835 - 2¹⁷ = 22108763 is a prime.

It is a super-2 number, since 2×22239835² = 989220521654450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22239835.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31840 + ... + 32530.

It is an arithmetic number, because the mean of its divisors is an integer number (1722042).

Almost surely, 2^22239835 is an apocalyptic number.

22239835 is a deficient number, since it is larger than the sum of its proper divisors (5312837).

22239835 is a wasteful number, since it uses less digits than its factorization.

22239835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its digits is 25920, while the sum is 34.

The square root of 22239835 is about 4715.9129550915. The cubic root of 22239835 is about 281.2184781133.

The spelling of 22239835 in words is "twenty-two million, two hundred thirty-nine thousand, eight hundred thirty-five".