20855038 has 8 divisors (see below), whose sum is σ = 31384080. Its totient is φ = 10393680.

The previous prime is 20855017. The next prime is 20855041. The reversal of 20855038 is 83055802.

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

It is a congruent 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, 16143 + ... + 17386.

It is an arithmetic number, because the mean of its divisors is an integer number (3923010).

Almost surely, 2^20855038 is an apocalyptic number.

20855038 is a deficient number, since it is larger than the sum of its proper divisors (10529042).

20855038 is a wasteful number, since it uses less digits than its factorization.

20855038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33842.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 20855038 is about 4566.7316540388. The cubic root of 20855038 is about 275.2561272165.

The spelling of 20855038 in words is "twenty million, eight hundred fifty-five thousand, thirty-eight".