172044100 has 36 divisors (see below), whose sum is σ = 374281600. Its totient is φ = 68643360.

The previous prime is 172044073. The next prime is 172044101. The reversal of 172044100 is 1440271.

It is a super-4 number, since 4×172044100⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (172044101) 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, 41941 + ... + 45859.

Almost surely, 2^172044100 is an apocalyptic number.

172044100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172044100 is an abundant number, since it is smaller than the sum of its proper divisors (202237500).

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

172044100 is a wasteful number, since it uses less digits than its factorization.

172044100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372 (or 4365 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 172044100 is about 13116.5582375866. The cubic root of 172044100 is about 556.1773022866.

Adding to 172044100 its reverse (1440271), we get a palindrome (173484371).

The spelling of 172044100 in words is "one hundred seventy-two million, forty-four thousand, one hundred".