203401028 has 6 divisors (see below), whose sum is σ = 355951806. Its totient is φ = 101700512.

The previous prime is 203401027. The next prime is 203401031. The reversal of 203401028 is 820104302.

203401028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 188018944 + 15382084 = 13712^2 + 3922^2 .

It is not an unprimeable number, because it can be changed into a prime (203401021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25425125 + ... + 25425132.

It is an arithmetic number, because the mean of its divisors is an integer number (59325301).

Almost surely, 2^203401028 is an apocalyptic number.

It is an amenable number.

203401028 is a deficient number, since it is larger than the sum of its proper divisors (152550778).

203401028 is a wasteful number, since it uses less digits than its factorization.

203401028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50850261 (or 50850259 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 203401028 is about 14261.8732289977. The cubic root of 203401028 is about 588.0998218545.

The spelling of 203401028 in words is "two hundred three million, four hundred one thousand, twenty-eight".