203172442 has 16 divisors (see below), whose sum is σ = 332763264. Its totient is φ = 92268000.

The previous prime is 203172413. The next prime is 203172443. The reversal of 203172442 is 244271302.

It is a happy number.

203172442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (203172443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25567 + ... + 32557.

It is an arithmetic number, because the mean of its divisors is an integer number (20797704).

Almost surely, 2^203172442 is an apocalyptic number.

203172442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203172442 is a deficient number, since it is larger than the sum of its proper divisors (129590822).

203172442 is a wasteful number, since it uses less digits than its factorization.

203172442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 203172442 is about 14253.8570920295. The cubic root of 203172442 is about 587.8794332991.

The spelling of 203172442 in words is "two hundred three million, one hundred seventy-two thousand, four hundred forty-two".