20352768 has 36 divisors (see below), whose sum is σ = 54170088. Its totient is φ = 6784000.

The previous prime is 20352767. The next prime is 20352793. The reversal of 20352768 is 86725302.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12483 + ... + 14018.

Almost surely, 2^20352768 is an apocalyptic number.

It is an amenable number.

20352768 is an abundant number, since it is smaller than the sum of its proper divisors (33817320).

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

20352768 is an equidigital number, since it uses as much as digits as its factorization.

20352768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26520 (or 26506 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 20352768 is about 4511.4042159842. The cubic root of 20352768 is about 273.0284020954.

The spelling of 20352768 in words is "twenty million, three hundred fifty-two thousand, seven hundred sixty-eight".