203073920 has 64 divisors (see below), whose sum is σ = 554839200. Its totient is φ = 69623808.

The previous prime is 203073917. The next prime is 203073961. The reversal of 203073920 is 29370302.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 203073920.

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, 18185 + ... + 27144.

Almost surely, 2^203073920 is an apocalyptic number.

203073920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203073920 is an abundant number, since it is smaller than the sum of its proper divisors (351765280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203073920 is an equidigital number, since it uses as much as digits as its factorization.

203073920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45355 (or 45343 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 203073920 is about 14250.4006961208. The cubic root of 203073920 is about 587.7843934707.

The spelling of 203073920 in words is "two hundred three million, seventy-three thousand, nine hundred twenty".