20652544 has 80 divisors (see below), whose sum is σ = 47630880. Its totient is φ = 8847360.

The previous prime is 20652523. The next prime is 20652547. The reversal of 20652544 is 44525602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106912 + ... + 107104.

It is an arithmetic number, because the mean of its divisors is an integer number (595386).

Almost surely, 2^20652544 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 20652544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23815440).

20652544 is an abundant number, since it is smaller than the sum of its proper divisors (26978336).

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

20652544 is a wasteful number, since it uses less digits than its factorization.

20652544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 20652544 is about 4544.5070139675. The cubic root of 20652544 is about 274.3623529229.

The spelling of 20652544 in words is "twenty million, six hundred fifty-two thousand, five hundred forty-four".