203618942 has 4 divisors (see below), whose sum is σ = 305428416. Its totient is φ = 101809470.

The previous prime is 203618941. The next prime is 203618999. The reversal of 203618942 is 249816302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203618941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50904734 + ... + 50904737.

It is an arithmetic number, because the mean of its divisors is an integer number (76357104).

Almost surely, 2^203618942 is an apocalyptic number.

203618942 is a deficient number, since it is larger than the sum of its proper divisors (101809474).

203618942 is a wasteful number, since it uses less digits than its factorization.

203618942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101809473.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 203618942 is about 14269.5109236442. The cubic root of 203618942 is about 588.3097674427.

The spelling of 203618942 in words is "two hundred three million, six hundred eighteen thousand, nine hundred forty-two".