20938752 has 96 divisors (see below), whose sum is σ = 61340760. Its totient is φ = 6881280.

The previous prime is 20938751. The next prime is 20938759. The reversal of 20938752 is 25783902.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20938751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 294877 + ... + 294947.

Almost surely, 2^20938752 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 20938752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30670380).

20938752 is an abundant number, since it is smaller than the sum of its proper divisors (40402008).

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

20938752 is an frugal number, since it uses more digits than its factorization.

20938752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 20938752 is about 4575.8881105202. Note that the first 3 decimals coincide. The cubic root of 20938752 is about 275.6239364730.

The spelling of 20938752 in words is "twenty million, nine hundred thirty-eight thousand, seven hundred fifty-two".