40884181 has 8 divisors (see below), whose sum is σ = 46346720. Its totient is φ = 35752752.

The previous prime is 40884169. The next prime is 40884187. The reversal of 40884181 is 18148804.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40884181 is a prime.

It is a super-2 number, since 2×40884181² = 3343032512081522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40884187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82515 + ... + 83008.

It is an arithmetic number, because the mean of its divisors is an integer number (5793340).

Almost surely, 2^40884181 is an apocalyptic number.

It is an amenable number.

40884181 is a deficient number, since it is larger than the sum of its proper divisors (5462539).

40884181 is a wasteful number, since it uses less digits than its factorization.

40884181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165555.

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 40884181 is about 6394.0738969768. The cubic root of 40884181 is about 344.4967275205.

The spelling of 40884181 in words is "forty million, eight hundred eighty-four thousand, one hundred eighty-one".