40499171 has 4 divisors (see below), whose sum is σ = 40511952. Its totient is φ = 40486392.

The previous prime is 40499141. The next prime is 40499189. The reversal of 40499171 is 17199404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40499171 - 2²² = 36304867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40499111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2330 + ... + 9296.

It is an arithmetic number, because the mean of its divisors is an integer number (10127988).

Almost surely, 2^40499171 is an apocalyptic number.

40499171 is a deficient number, since it is larger than the sum of its proper divisors (12781).

40499171 is an equidigital number, since it uses as much as digits as its factorization.

40499171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12780.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 40499171 is about 6363.8958979543. The cubic root of 40499171 is about 343.4119296189.

The spelling of 40499171 in words is "forty million, four hundred ninety-nine thousand, one hundred seventy-one".