22232481 has 12 divisors (see below), whose sum is σ = 31490832. Its totient is φ = 13949248.

The previous prime is 22232471. The next prime is 22232501. The reversal of 22232481 is 18423222.

It is not a de Polignac number, because 22232481 - 2¹⁴ = 22216097 is a prime.

It is a super-2 number, since 2×22232481² = 988566422830722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22232401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11955 + ... + 13688.

It is an arithmetic number, because the mean of its divisors is an integer number (2624236).

Almost surely, 2^22232481 is an apocalyptic number.

It is an amenable number.

22232481 is a deficient number, since it is larger than the sum of its proper divisors (9258351).

22232481 is a wasteful number, since it uses less digits than its factorization.

22232481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25680 (or 25663 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 22232481 is about 4715.1331900594. The cubic root of 22232481 is about 281.1874780530.

The spelling of 22232481 in words is "twenty-two million, two hundred thirty-two thousand, four hundred eighty-one".