40108863 has 16 divisors (see below), whose sum is σ = 54885600. Its totient is φ = 26043264.

The previous prime is 40108847. The next prime is 40108877. The reversal of 40108863 is 36880104.

It is a happy number.

It is not a de Polignac number, because 40108863 - 2⁴ = 40108847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40108863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40108883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22845 + ... + 24537.

It is an arithmetic number, because the mean of its divisors is an integer number (3430350).

Almost surely, 2^40108863 is an apocalyptic number.

40108863 is a deficient number, since it is larger than the sum of its proper divisors (14776737).

40108863 is a wasteful number, since it uses less digits than its factorization.

40108863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40108863 is about 6333.1558483903. The cubic root of 40108863 is about 342.3051634850.

Adding to 40108863 its reverse (36880104), we get a palindrome (76988967).

The spelling of 40108863 in words is "forty million, one hundred eight thousand, eight hundred sixty-three".