172041900 has 36 divisors (see below), whose sum is σ = 497775432. Its totient is φ = 45877760.

The previous prime is 172041889. The next prime is 172041901. The reversal of 172041900 is 9140271.

It is a super-2 number, since 2×172041900² = 59196830711220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172041901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286437 + ... + 287036.

Almost surely, 2^172041900 is an apocalyptic number.

172041900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172041900 is an abundant number, since it is smaller than the sum of its proper divisors (325733532).

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

172041900 is a wasteful number, since it uses less digits than its factorization.

172041900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573490 (or 573483 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 172041900 is about 13116.4743738552. The cubic root of 172041900 is about 556.1749315858.

The spelling of 172041900 in words is "one hundred seventy-two million, forty-one thousand, nine hundred".