203443042 has 16 divisors (see below), whose sum is σ = 334296864. Its totient is φ = 92088000.

The previous prime is 203443039. The next prime is 203443061. The reversal of 203443042 is 240344302.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13884 + ... + 24487.

It is an arithmetic number, because the mean of its divisors is an integer number (20893554).

Almost surely, 2^203443042 is an apocalyptic number.

203443042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203443042 is a deficient number, since it is larger than the sum of its proper divisors (130853822).

203443042 is a wasteful number, since it uses less digits than its factorization.

203443042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38625.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 203443042 is about 14263.3461011083. The cubic root of 203443042 is about 588.1403112023.

Adding to 203443042 its reverse (240344302), we get a palindrome (443787344).

The spelling of 203443042 in words is "two hundred three million, four hundred forty-three thousand, forty-two".