22402332 has 30 divisors (see below), whose sum is σ = 58564968. Its totient is φ = 7467336.

The previous prime is 22402327. The next prime is 22402337. The reversal of 22402332 is 23320422.

It is an interprime number because it is at equal distance from previous prime (22402327) and next prime (22402337).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22402337) 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 9 ways as a sum of consecutive naturals, for example, 34248 + ... + 34895.

Almost surely, 2^22402332 is an apocalyptic number.

It is an amenable number.

22402332 is an abundant number, since it is smaller than the sum of its proper divisors (36162636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22402332 is a wasteful number, since it uses less digits than its factorization.

22402332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69159 (or 69148 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22402332 is about 4733.1101825333. The cubic root of 22402332 is about 281.9017312650.

Adding to 22402332 its reverse (23320422), we get a palindrome (45722754).

The spelling of 22402332 in words is "twenty-two million, four hundred two thousand, three hundred thirty-two".