20792238 has 8 divisors (see below), whose sum is σ = 41584488. Its totient is φ = 6930744.

The previous prime is 20792237. The next prime is 20792243. The reversal of 20792238 is 83229702.

It is a sphenic number, since it is the product of 3 distinct primes.

20792238 is an admirable number.

It is a super-2 number, since 2×20792238² = 864634322097288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20792199 and 20792208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20792237) 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, 1732681 + ... + 1732692.

It is an arithmetic number, because the mean of its divisors is an integer number (5198061).

Almost surely, 2^20792238 is an apocalyptic number.

20792238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20792238 is a wasteful number, since it uses less digits than its factorization.

20792238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465378.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 20792238 is about 4559.8506554491. The cubic root of 20792238 is about 274.9795599133.

The spelling of 20792238 in words is "twenty million, seven hundred ninety-two thousand, two hundred thirty-eight".