22516032 has 112 divisors (see below), whose sum is σ = 74322432. Its totient is φ = 5844480.

The previous prime is 22516019. The next prime is 22516037. The reversal of 22516032 is 23061522.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22516037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14023 + ... + 15545.

Almost surely, 2^22516032 is an apocalyptic number.

22516032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22516032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37161216).

22516032 is an abundant number, since it is smaller than the sum of its proper divisors (51806400).

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

22516032 is a wasteful number, since it uses less digits than its factorization.

22516032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556 (or 1546 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22516032 is about 4745.1061105101. The cubic root of 22516032 is about 282.3778446989.

Adding to 22516032 its reverse (23061522), we get a palindrome (45577554).

Subtracting 22516032 from its reverse (23061522), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 22516032 in words is "twenty-two million, five hundred sixteen thousand, thirty-two".