200172040 has 32 divisors (see below), whose sum is σ = 451863360. Its totient is φ = 79806400.

The previous prime is 200172029. The next prime is 200172041. The reversal of 200172040 is 40271002.

It is not an unprimeable number, because it can be changed into a prime (200172041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4395 + ... + 20485.

It is an arithmetic number, because the mean of its divisors is an integer number (14120730).

Almost surely, 2^200172040 is an apocalyptic number.

200172040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200172040 is an abundant number, since it is smaller than the sum of its proper divisors (251691320).

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

200172040 is a wasteful number, since it uses less digits than its factorization.

200172040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16413 (or 16409 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 200172040 is about 14148.2168487764. The cubic root of 200172040 is about 584.9711822559.

The spelling of 200172040 in words is "two hundred million, one hundred seventy-two thousand, forty".