20100238 has 8 divisors (see below), whose sum is σ = 30661560. Its totient is φ = 9879720.

The previous prime is 20100217. The next prime is 20100251. The reversal of 20100238 is 83200102.

It is a happy number.

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, 85053 + ... + 85288.

It is an arithmetic number, because the mean of its divisors is an integer number (3832695).

Almost surely, 2^20100238 is an apocalyptic number.

20100238 is a deficient number, since it is larger than the sum of its proper divisors (10561322).

20100238 is a wasteful number, since it uses less digits than its factorization.

20100238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170402.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20100238 is about 4483.3288971477. The cubic root of 20100238 is about 271.8944858188.

The spelling of 20100238 in words is "twenty million, one hundred thousand, two hundred thirty-eight".