40118140 has 24 divisors (see below), whose sum is σ = 86209200. Its totient is φ = 15673728.

The previous prime is 40118081. The next prime is 40118159. The reversal of 40118140 is 4181104.

40118140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22465 + ... + 24184.

It is an arithmetic number, because the mean of its divisors is an integer number (3592050).

Almost surely, 2^40118140 is an apocalyptic number.

It is an amenable number.

40118140 is an abundant number, since it is smaller than the sum of its proper divisors (46091060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40118140 is a wasteful number, since it uses less digits than its factorization.

40118140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46701 (or 46699 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 40118140 is about 6333.8882213061. Note that the first 3 decimals coincide. The cubic root of 40118140 is about 342.3315526666.

Adding to 40118140 its reverse (4181104), we get a palindrome (44299244).

The spelling of 40118140 in words is "forty million, one hundred eighteen thousand, one hundred forty".