40012311 has 8 divisors (see below), whose sum is σ = 53708400. Its totient is φ = 26495552.

The previous prime is 40012277. The next prime is 40012319. The reversal of 40012311 is 11321004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40012311 - 2⁷ = 40012183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012319) 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 7 ways as a sum of consecutive naturals, for example, 44310 + ... + 45203.

It is an arithmetic number, because the mean of its divisors is an integer number (6713550).

Almost surely, 2^40012311 is an apocalyptic number.

40012311 is a deficient number, since it is larger than the sum of its proper divisors (13696089).

40012311 is a wasteful number, since it uses less digits than its factorization.

40012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89665.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 40012311 is about 6325.5285154681. The cubic root of 40012311 is about 342.0302715929.

Adding to 40012311 its reverse (11321004), we get a palindrome (51333315).

The spelling of 40012311 in words is "forty million, twelve thousand, three hundred eleven".