40861911 has 8 divisors (see below), whose sum is σ = 55749760. Its totient is φ = 26607672.

The previous prime is 40861889. The next prime is 40861921. The reversal of 40861911 is 11916804.

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

It is not a de Polignac number, because 40861911 - 2⁵ = 40861879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40861921) 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, 158251 + ... + 158508.

It is an arithmetic number, because the mean of its divisors is an integer number (6968720).

Almost surely, 2^40861911 is an apocalyptic number.

40861911 is a deficient number, since it is larger than the sum of its proper divisors (14887849).

40861911 is a wasteful number, since it uses less digits than its factorization.

40861911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316805.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 40861911 is about 6392.3322035076. The cubic root of 40861911 is about 344.4341659514.

The spelling of 40861911 in words is "forty million, eight hundred sixty-one thousand, nine hundred eleven".