202138200 has 384 divisors, whose sum is σ = 787449600. Its totient is φ = 47232000.

The previous prime is 202138199. The next prime is 202138213. The reversal of 202138200 is 2831202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2435359 + ... + 2435441.

It is an arithmetic number, because the mean of its divisors is an integer number (2050650).

Almost surely, 2^202138200 is an apocalyptic number.

202138200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202138200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393724800).

202138200 is an abundant number, since it is smaller than the sum of its proper divisors (585311400).

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

202138200 is a wasteful number, since it uses less digits than its factorization.

202138200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 202138200 is about 14217.5314312999. The cubic root of 202138200 is about 586.8802095098.

Adding to 202138200 its reverse (2831202), we get a palindrome (204969402).

The spelling of 202138200 in words is "two hundred two million, one hundred thirty-eight thousand, two hundred".