40881105 has 24 divisors (see below), whose sum is σ = 73487232. Its totient is φ = 21802608.

The previous prime is 40881101. The next prime is 40881109. The reversal of 40881105 is 50118804.

It is an interprime number because it is at equal distance from previous prime (40881101) and next prime (40881109).

It is not a de Polignac number, because 40881105 - 2² = 40881101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40881101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15609 + ... + 18038.

It is an arithmetic number, because the mean of its divisors is an integer number (3061968).

Almost surely, 2^40881105 is an apocalyptic number.

40881105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40881105 is a deficient number, since it is larger than the sum of its proper divisors (32606127).

40881105 is an equidigital number, since it uses as much as digits as its factorization.

40881105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33667 (or 33655 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 40881105 is about 6393.8333572279. The cubic root of 40881105 is about 344.4880876791.

Adding to 40881105 its reverse (50118804), we get a palindrome (90999909).

The spelling of 40881105 in words is "forty million, eight hundred eighty-one thousand, one hundred five".