22649232 has 80 divisors (see below), whose sum is σ = 61871040. Its totient is φ = 7128576.

The previous prime is 22649201. The next prime is 22649233. The reversal of 22649232 is 23294622.

It is a self number, because there is not a number n which added to its sum of digits gives 22649232.

It is not an unprimeable number, because it can be changed into a prime (22649233) 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 in 15 ways as a sum of consecutive naturals, for example, 73623 + ... + 73929.

It is an arithmetic number, because the mean of its divisors is an integer number (773388).

Almost surely, 2^22649232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22649232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30935520).

22649232 is an abundant number, since it is smaller than the sum of its proper divisors (39221808).

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

22649232 is a wasteful number, since it uses less digits than its factorization.

22649232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 394 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 22649232 is about 4759.1209272302. The cubic root of 22649232 is about 282.9335791213.

The spelling of 22649232 in words is "twenty-two million, six hundred forty-nine thousand, two hundred thirty-two".