20392338 has 8 divisors (see below), whose sum is σ = 40784688. Its totient is φ = 6797444.

The previous prime is 20392297. The next prime is 20392343. The reversal of 20392338 is 83329302.

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

20392338 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699356 + ... + 1699367.

It is an arithmetic number, because the mean of its divisors is an integer number (5098086).

Almost surely, 2^20392338 is an apocalyptic number.

20392338 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.

20392338 is a wasteful number, since it uses less digits than its factorization.

20392338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398728.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20392338 is about 4515.7876389396. The cubic root of 20392338 is about 273.2052288192.

The spelling of 20392338 in words is "twenty million, three hundred ninety-two thousand, three hundred thirty-eight".