202194090 has 384 divisors, whose sum is σ = 709171200. Its totient is φ = 40642560.

The previous prime is 202194089. The next prime is 202194151. The reversal of 202194090 is 90491202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6522375 + ... + 6522405.

It is an arithmetic number, because the mean of its divisors is an integer number (1846800).

Almost surely, 2^202194090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202194090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354585600).

202194090 is an abundant number, since it is smaller than the sum of its proper divisors (506977110).

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

202194090 is a wasteful number, since it uses less digits than its factorization.

202194090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 202194090 is about 14219.4968265407. The cubic root of 202194090 is about 586.9342941448.

The spelling of 202194090 in words is "two hundred two million, one hundred ninety-four thousand, ninety".