40380180 has 96 divisors (see below), whose sum is σ = 122169600. Its totient is φ = 9934848.

The previous prime is 40380143. The next prime is 40380199. The reversal of 40380180 is 8108304.

It is a self number, because there is not a number n which added to its sum of digits gives 40380180.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39516 + ... + 40524.

It is an arithmetic number, because the mean of its divisors is an integer number (1272600).

Almost surely, 2^40380180 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 40380180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61084800).

40380180 is an abundant number, since it is smaller than the sum of its proper divisors (81789420).

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

40380180 is a wasteful number, since it uses less digits than its factorization.

40380180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 40380180 is about 6354.5401092447. The cubic root of 40380180 is about 343.0752724044.

Adding to 40380180 its reverse (8108304), we get a palindrome (48488484).

The spelling of 40380180 in words is "forty million, three hundred eighty thousand, one hundred eighty".