40173180 has 96 divisors (see below), whose sum is σ = 120282624. Its totient is φ = 9993984.

The previous prime is 40173173. The next prime is 40173181. The reversal of 40173180 is 8137104.

It is a super-2 number, since 2×40173180² = 3227768782624800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40173180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40173181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59002 + ... + 59678.

It is an arithmetic number, because the mean of its divisors is an integer number (1252944).

Almost surely, 2^40173180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40173180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60141312).

40173180 is an abundant number, since it is smaller than the sum of its proper divisors (80109444).

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

40173180 is a wasteful number, since it uses less digits than its factorization.

40173180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 40173180 is about 6338.2316145752. The cubic root of 40173180 is about 342.4880348174.

The spelling of 40173180 in words is "forty million, one hundred seventy-three thousand, one hundred eighty".