203868402 has 16 divisors (see below), whose sum is σ = 408035232. Its totient is φ = 67906400.

The previous prime is 203868397. The next prime is 203868419. The reversal of 203868402 is 204868302.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 7 ways as a sum of consecutive naturals, for example, 3003 + ... + 20414.

It is an arithmetic number, because the mean of its divisors is an integer number (25502202).

Almost surely, 2^203868402 is an apocalyptic number.

203868402 is an abundant number, since it is smaller than the sum of its proper divisors (204166830).

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

203868402 is a wasteful number, since it uses less digits than its factorization.

203868402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24873.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 203868402 is about 14278.2492624271. The cubic root of 203868402 is about 588.5499216912.

The spelling of 203868402 in words is "two hundred three million, eight hundred sixty-eight thousand, four hundred two".