202113406 has 16 divisors (see below), whose sum is σ = 335669760. Its totient is φ = 90497880.

The previous prime is 202113389. The next prime is 202113413. The reversal of 202113406 is 604311202.

202113406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 67086 + ... + 70033.

It is an arithmetic number, because the mean of its divisors is an integer number (20979360).

Almost surely, 2^202113406 is an apocalyptic number.

202113406 is a deficient number, since it is larger than the sum of its proper divisors (133556354).

202113406 is a wasteful number, since it uses less digits than its factorization.

202113406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137199.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 202113406 is about 14216.6594529095. The cubic root of 202113406 is about 586.8562132161.

Adding to 202113406 its reverse (604311202), we get a palindrome (806424608).

The spelling of 202113406 in words is "two hundred two million, one hundred thirteen thousand, four hundred six".