40118042 has 8 divisors (see below), whose sum is σ = 60294132. Its totient is φ = 20020000.

The previous prime is 40118033. The next prime is 40118047. The reversal of 40118042 is 24081104.

It can be written as a sum of positive squares in 2 ways, for example, as 40081561 + 36481 = 6331^2 + 191^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40118047) 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 3 ways as a sum of consecutive naturals, for example, 18209 + ... + 20292.

Almost surely, 2^40118042 is an apocalyptic number.

40118042 is a deficient number, since it is larger than the sum of its proper divisors (20176090).

40118042 is a wasteful number, since it uses less digits than its factorization.

40118042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39024.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 40118042 is about 6333.8804851371. The cubic root of 40118042 is about 342.3312739189.

Adding to 40118042 its reverse (24081104), we get a palindrome (64199146).

The spelling of 40118042 in words is "forty million, one hundred eighteen thousand, forty-two".