40016331 has 6 divisors (see below), whose sum is σ = 57801380. Its totient is φ = 26677548.

The previous prime is 40016329. The next prime is 40016357. The reversal of 40016331 is 13361004.

40016331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40016331 - 2¹ = 40016329 is a prime.

It is a super-2 number, since 2×40016331² = 3202613493403122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40016311) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2223121 + ... + 2223138.

Almost surely, 2^40016331 is an apocalyptic number.

40016331 is a deficient number, since it is larger than the sum of its proper divisors (17785049).

40016331 is a wasteful number, since it uses less digits than its factorization.

40016331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446265 (or 4446262 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 40016331 is about 6325.8462674965. The cubic root of 40016331 is about 342.0417256980.

Adding to 40016331 its reverse (13361004), we get a palindrome (53377335).

The spelling of 40016331 in words is "forty million, sixteen thousand, three hundred thirty-one".