20023392 has 24 divisors (see below), whose sum is σ = 52561656. Its totient is φ = 6674432.

The previous prime is 20023391. The next prime is 20023403. The reversal of 20023392 is 29332002.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023391) 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, 104193 + ... + 104384.

It is an arithmetic number, because the mean of its divisors is an integer number (2190069).

Almost surely, 2^20023392 is an apocalyptic number.

It is an amenable number.

20023392 is an abundant number, since it is smaller than the sum of its proper divisors (32538264).

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

20023392 is a wasteful number, since it uses less digits than its factorization.

20023392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208590 (or 208582 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 20023392 is about 4474.7504958377. The cubic root of 20023392 is about 271.5475465230.

Adding to 20023392 its reverse (29332002), we get a palindrome (49355394).

The spelling of 20023392 in words is "twenty million, twenty-three thousand, three hundred ninety-two".