203980172 has 12 divisors (see below), whose sum is σ = 389416776. Its totient is φ = 92718240.

The previous prime is 203980163. The next prime is 203980187. The reversal of 203980172 is 271089302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2317913 + ... + 2318000.

It is an arithmetic number, because the mean of its divisors is an integer number (32451398).

Almost surely, 2^203980172 is an apocalyptic number.

203980172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

203980172 is a deficient number, since it is larger than the sum of its proper divisors (185436604).

203980172 is a wasteful number, since it uses less digits than its factorization.

203980172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635928 (or 4635926 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 203980172 is about 14282.1627213808. The cubic root of 203980172 is about 588.6574587203.

The spelling of 203980172 in words is "two hundred three million, nine hundred eighty thousand, one hundred seventy-two".