22154832 has 120 divisors (see below), whose sum is σ = 73249280. Its totient is φ = 6117120.

The previous prime is 22154809. The next prime is 22154833. The reversal of 22154832 is 23845122.

It is a junction number, because it is equal to n+sod(n) for n = 22154796 and 22154805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30894 + ... + 31602.

Almost surely, 2^22154832 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 22154832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36624640).

22154832 is an abundant number, since it is smaller than the sum of its proper divisors (51094448).

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

22154832 is a wasteful number, since it uses less digits than its factorization.

22154832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 752 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 22154832 is about 4706.8919681675. The cubic root of 22154832 is about 280.8597384285.

Adding to 22154832 its reverse (23845122), we get a palindrome (45999954).

The spelling of 22154832 in words is "twenty-two million, one hundred fifty-four thousand, eight hundred thirty-two".