40499081 has 8 divisors (see below), whose sum is σ = 46743744. Its totient is φ = 34369200.

The previous prime is 40499057. The next prime is 40499093. The reversal of 40499081 is 18099404.

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

It is a cyclic number.

It is not a de Polignac number, because 40499081 - 2¹⁴ = 40482697 is a prime.

It is a super-2 number, since 2×40499081² = 3280351123689122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40499681) 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, 27935 + ... + 29348.

It is an arithmetic number, because the mean of its divisors is an integer number (5842968).

Almost surely, 2^40499081 is an apocalyptic number.

It is an amenable number.

40499081 is a deficient number, since it is larger than the sum of its proper divisors (6244663).

40499081 is a wasteful number, since it uses less digits than its factorization.

40499081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57391.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 40499081 is about 6363.8888268102. Note that the first 4 decimals coincide. The cubic root of 40499081 is about 343.4116752343.

The spelling of 40499081 in words is "forty million, four hundred ninety-nine thousand, eighty-one".