40986180 has 72 divisors (see below), whose sum is σ = 125525400. Its totient is φ = 10824192.

The previous prime is 40986157. The next prime is 40986199. The reversal of 40986180 is 8168904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14607684 + 26378496 = 3822^2 + 5136^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 18576 + ... + 20664.

Almost surely, 2^40986180 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 40986180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62762700).

40986180 is an abundant number, since it is smaller than the sum of its proper divisors (84539220).

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

40986180 is a wasteful number, since it uses less digits than its factorization.

40986180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 40986180 is about 6402.0449857838. The cubic root of 40986180 is about 344.7829763004.

The spelling of 40986180 in words is "forty million, nine hundred eighty-six thousand, one hundred eighty".