40134985 has 16 divisors (see below), whose sum is σ = 54354240. Its totient is φ = 28181440.

The previous prime is 40134971. The next prime is 40134989. The reversal of 40134985 is 58943104.

It is not a de Polignac number, because 40134985 - 2⁹ = 40134473 is a prime.

It is a super-2 number, since 2×40134985² = 3221634041900450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40134985.

It is not an unprimeable number, because it can be changed into a prime (40134989) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10987 + ... + 14176.

It is an arithmetic number, because the mean of its divisors is an integer number (3397140).

Almost surely, 2^40134985 is an apocalyptic number.

It is an amenable number.

40134985 is a deficient number, since it is larger than the sum of its proper divisors (14219255).

40134985 is a wasteful number, since it uses less digits than its factorization.

40134985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25208.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 40134985 is about 6335.2178336660. The cubic root of 40134985 is about 342.3794592419.

It can be divided in two parts, 4013 and 4985, that added together give a palindrome (8998).

The spelling of 40134985 in words is "forty million, one hundred thirty-four thousand, nine hundred eighty-five".