22397235 has 16 divisors (see below), whose sum is σ = 40955136. Its totient is φ = 10238688.

The previous prime is 22397231. The next prime is 22397237. The reversal of 22397235 is 53279322.

It is not a de Polignac number, because 22397235 - 2² = 22397231 is a prime.

It is a super-2 number, since 2×22397235² = 1003272271290450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22397196 and 22397205.

It is not an unprimeable number, because it can be changed into a prime (22397231) 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, 106549 + ... + 106758.

It is an arithmetic number, because the mean of its divisors is an integer number (2559696).

Almost surely, 2^22397235 is an apocalyptic number.

22397235 is a deficient number, since it is larger than the sum of its proper divisors (18557901).

22397235 is a wasteful number, since it uses less digits than its factorization.

22397235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213322.

The product of its digits is 22680, while the sum is 33.

The square root of 22397235 is about 4732.5717110256. The cubic root of 22397235 is about 281.8803501262.

The spelling of 22397235 in words is "twenty-two million, three hundred ninety-seven thousand, two hundred thirty-five".