20164339 has 8 divisors (see below), whose sum is σ = 22858640. Its totient is φ = 17633376.

The previous prime is 20164321. The next prime is 20164349. The reversal of 20164339 is 93346102.

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

It is a cyclic number.

It is not a de Polignac number, because 20164339 - 2¹¹ = 20162291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20164349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40572 + ... + 41065.

It is an arithmetic number, because the mean of its divisors is an integer number (2857330).

Almost surely, 2^20164339 is an apocalyptic number.

20164339 is a deficient number, since it is larger than the sum of its proper divisors (2694301).

20164339 is a wasteful number, since it uses less digits than its factorization.

20164339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81669.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 20164339 is about 4490.4720241863. The cubic root of 20164339 is about 272.1832090018.

It can be divided in two parts, 20164 and 339, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20164339 in words is "twenty million, one hundred sixty-four thousand, three hundred thirty-nine".