202198420 has 12 divisors (see below), whose sum is σ = 424616724. Its totient is φ = 80879360.

The previous prime is 202198397. The next prime is 202198439. The reversal of 202198420 is 24891202.

It can be written as a sum of positive squares in 2 ways, for example, as 53260804 + 148937616 = 7298^2 + 12204^2 .

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, 5054941 + ... + 5054980.

It is an arithmetic number, because the mean of its divisors is an integer number (35384727).

Almost surely, 2^202198420 is an apocalyptic number.

202198420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202198420 is an abundant number, since it is smaller than the sum of its proper divisors (222418304).

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

202198420 is a wasteful number, since it uses less digits than its factorization.

202198420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10109930 (or 10109928 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 202198420 is about 14219.6490814647. The cubic root of 202198420 is about 586.9384838607.

The spelling of 202198420 in words is "two hundred two million, one hundred ninety-eight thousand, four hundred twenty".