20752116 has 96 divisors (see below), whose sum is σ = 62103552. Its totient is φ = 5235840.

The previous prime is 20752091. The next prime is 20752133. The reversal of 20752116 is 61125702.

It is a super-3 number, since 3×20752116³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33885 + ... + 34491.

It is an arithmetic number, because the mean of its divisors is an integer number (646912).

Almost surely, 2^20752116 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 20752116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31051776).

20752116 is an abundant number, since it is smaller than the sum of its proper divisors (41351436).

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

20752116 is a wasteful number, since it uses less digits than its factorization.

20752116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 20752116 is about 4555.4490448253. The cubic root of 20752116 is about 274.8025734500.

Adding to 20752116 its reverse (61125702), we get a palindrome (81877818).

The spelling of 20752116 in words is "twenty million, seven hundred fifty-two thousand, one hundred sixteen".