40118684 has 6 divisors (see below), whose sum is σ = 70207704. Its totient is φ = 20059340.

The previous prime is 40118677. The next prime is 40118707. The reversal of 40118684 is 48681104.

It is a self number, because there is not a number n which added to its sum of digits gives 40118684.

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 as a sum of consecutive naturals, namely, 5014832 + ... + 5014839.

It is an arithmetic number, because the mean of its divisors is an integer number (11701284).

Almost surely, 2^40118684 is an apocalyptic number.

It is an amenable number.

40118684 is a deficient number, since it is larger than the sum of its proper divisors (30089020).

40118684 is a wasteful number, since it uses less digits than its factorization.

40118684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10029675 (or 10029673 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 40118684 is about 6333.9311647665. The cubic root of 40118684 is about 342.3330999926. Note that the first 3 decimals are identical.

Adding to 40118684 its reverse (48681104), we get a palindrome (88799788).

The spelling of 40118684 in words is "forty million, one hundred eighteen thousand, six hundred eighty-four".