202138650 has 72 divisors (see below), whose sum is σ = 620671584. Its totient is φ = 46202400.

The previous prime is 202138639. The next prime is 202138667. The reversal of 202138650 is 56831202.

202138650 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 3 + 8 + 650 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28936 + ... + 35235.

Almost surely, 2^202138650 is an apocalyptic number.

202138650 is an abundant number, since it is smaller than the sum of its proper divisors (418532934).

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

202138650 is a wasteful number, since it uses less digits than its factorization.

202138650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64196 (or 64188 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 202138650 is about 14217.5472568232. The cubic root of 202138650 is about 586.8806450137.

Adding to 202138650 its reverse (56831202), we get a palindrome (258969852).

The spelling of 202138650 in words is "two hundred two million, one hundred thirty-eight thousand, six hundred fifty".