22398232 has 8 divisors (see below), whose sum is σ = 41996700. Its totient is φ = 11199112.

The previous prime is 22398221. The next prime is 22398239. The reversal of 22398232 is 23289322.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22398194 and 22398203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22398239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399882 + ... + 1399897.

Almost surely, 2^22398232 is an apocalyptic number.

It is an amenable number.

22398232 is a deficient number, since it is larger than the sum of its proper divisors (19598468).

22398232 is a wasteful number, since it uses less digits than its factorization.

22398232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799785 (or 2799781 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 22398232 is about 4732.6770437037. The cubic root of 22398232 is about 281.8845326445.

The spelling of 22398232 in words is "twenty-two million, three hundred ninety-eight thousand, two hundred thirty-two".