22252239 has 12 divisors (see below), whose sum is σ = 33332936. Its totient is φ = 14834664.

The previous prime is 22252229. The next prime is 22252261. The reversal of 22252239 is 93225222.

It is not a de Polignac number, because 22252239 - 2¹⁵ = 22219471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22252229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45544 + ... + 46029.

Almost surely, 2^22252239 is an apocalyptic number.

22252239 is a deficient number, since it is larger than the sum of its proper divisors (11080697).

22252239 is an frugal number, since it uses more digits than its factorization.

22252239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91588 (or 91576 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 22252239 is about 4717.2278935833. The cubic root of 22252239 is about 281.2707504690.

The spelling of 22252239 in words is "twenty-two million, two hundred fifty-two thousand, two hundred thirty-nine".