20103198 has 16 divisors (see below), whose sum is σ = 40267920. Its totient is φ = 6690816.

The previous prime is 20103191. The next prime is 20103199. The reversal of 20103198 is 89130102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103191) 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, 2436 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (2516745).

Almost surely, 2^20103198 is an apocalyptic number.

20103198 is an abundant number, since it is smaller than the sum of its proper divisors (20164722).

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

20103198 is a wasteful number, since it uses less digits than its factorization.

20103198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 20103198 is about 4483.6589968462. The cubic root of 20103198 is about 271.9078317333.

It can be divided in two parts, 20103 and 198, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 20103198 in words is "twenty million, one hundred three thousand, one hundred ninety-eight".