40404085 has 8 divisors (see below), whose sum is σ = 49307040. Its totient is φ = 31775184.

The previous prime is 40404043. The next prime is 40404097. The reversal of 40404085 is 58040404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40404085 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68187 + ... + 68776.

It is an arithmetic number, because the mean of its divisors is an integer number (6163380).

Almost surely, 2^40404085 is an apocalyptic number.

It is an amenable number.

40404085 is a deficient number, since it is larger than the sum of its proper divisors (8902955).

40404085 is a wasteful number, since it uses less digits than its factorization.

40404085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137027.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 40404085 is about 6356.4207695841. The cubic root of 40404085 is about 343.1429590480.

Adding to 40404085 its reverse (58040404), we get a palindrome (98444489).

The spelling of 40404085 in words is "forty million, four hundred four thousand, eighty-five".