203494430 has 16 divisors (see below), whose sum is σ = 366597360. Its totient is φ = 81329472.

The previous prime is 203494429. The next prime is 203494517. The reversal of 203494430 is 34494302.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203494393 and 203494402.

It is a congruent number.

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, 4997 + ... + 20783.

It is an arithmetic number, because the mean of its divisors is an integer number (22912335).

Almost surely, 2^203494430 is an apocalyptic number.

203494430 is a deficient number, since it is larger than the sum of its proper divisors (163102930).

203494430 is a wasteful number, since it uses less digits than its factorization.

203494430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17083.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 203494430 is about 14265.1473879522. The cubic root of 203494430 is about 588.1898267975.

The spelling of 203494430 in words is "two hundred three million, four hundred ninety-four thousand, four hundred thirty".