40718138 has 8 divisors (see below), whose sum is σ = 61104288. Its totient is φ = 20350044.

The previous prime is 40718129. The next prime is 40718141. The reversal of 40718138 is 83181704.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6545 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (7638036).

Almost surely, 2^40718138 is an apocalyptic number.

40718138 is a deficient number, since it is larger than the sum of its proper divisors (20386150).

40718138 is a wasteful number, since it uses less digits than its factorization.

40718138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9028.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 40718138 is about 6381.0765549396. The cubic root of 40718138 is about 344.0297263387.

The spelling of 40718138 in words is "forty million, seven hundred eighteen thousand, one hundred thirty-eight".