172498040 has 128 divisors (see below), whose sum is σ = 465393600. Its totient is φ = 56709120.

The previous prime is 172498019. The next prime is 172498087. The reversal of 172498040 is 40894271.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 302876 + ... + 303444.

Almost surely, 2^172498040 is an apocalyptic number.

172498040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172498040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232696800).

172498040 is an abundant number, since it is smaller than the sum of its proper divisors (292895560).

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

172498040 is a wasteful number, since it uses less digits than its factorization.

172498040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 172498040 is about 13133.8509204270. The cubic root of 172498040 is about 556.6660324055. Note that the first 3 decimals are identical.

The spelling of 172498040 in words is "one hundred seventy-two million, four hundred ninety-eight thousand, forty".