202020194 has 8 divisors (see below), whose sum is σ = 309477888. Its totient is φ = 98860900.

The previous prime is 202020193. The next prime is 202020253. The reversal of 202020194 is 491020202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (202020193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074482 + ... + 1074669.

It is an arithmetic number, because the mean of its divisors is an integer number (38684736).

Almost surely, 2^202020194 is an apocalyptic number.

202020194 is a deficient number, since it is larger than the sum of its proper divisors (107457694).

202020194 is a wasteful number, since it uses less digits than its factorization.

202020194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149200.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 202020194 is about 14213.3808082384. The cubic root of 202020194 is about 586.7659825977.

Adding to 202020194 its reverse (491020202), we get a palindrome (693040396).

The spelling of 202020194 in words is "two hundred two million, twenty thousand, one hundred ninety-four".