40118685 has 8 divisors (see below), whose sum is σ = 64189920. Its totient is φ = 21396624.

The previous prime is 40118677. The next prime is 40118707. The reversal of 40118685 is 58681104.

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

It is not a de Polignac number, because 40118685 - 2³ = 40118677 is a prime.

It is a super-2 number, since 2×40118685² = 3219017772258450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1337275 + ... + 1337304.

It is an arithmetic number, because the mean of its divisors is an integer number (8023740).

Almost surely, 2^40118685 is an apocalyptic number.

It is an amenable number.

40118685 is a deficient number, since it is larger than the sum of its proper divisors (24071235).

40118685 is a wasteful number, since it uses less digits than its factorization.

40118685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674587.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 40118685 is about 6333.9312437064. The cubic root of 40118685 is about 342.3331028369. Note that the first 3 decimals are identical.

Adding to 40118685 its reverse (58681104), we get a palindrome (98799789).

The spelling of 40118685 in words is "forty million, one hundred eighteen thousand, six hundred eighty-five".