202164404 has 12 divisors (see below), whose sum is σ = 381002244. Its totient is φ = 93306624.

The previous prime is 202164353. The next prime is 202164407. The reversal of 202164404 is 404461202.

It can be written as a sum of positive squares in 2 ways, for example, as 129914404 + 72250000 = 11398^2 + 8500^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202164404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202164407) 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, 1943837 + ... + 1943940.

It is an arithmetic number, because the mean of its divisors is an integer number (31750187).

Almost surely, 2^202164404 is an apocalyptic number.

It is an amenable number.

202164404 is a deficient number, since it is larger than the sum of its proper divisors (178837840).

202164404 is a wasteful number, since it uses less digits than its factorization.

202164404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887794 (or 3887792 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 202164404 is about 14218.4529397540. The cubic root of 202164404 is about 586.9055683065.

The spelling of 202164404 in words is "two hundred two million, one hundred sixty-four thousand, four hundred four".