40323311 has 8 divisors (see below), whose sum is σ = 47673120. Its totient is φ = 33370848.

The previous prime is 40323307. The next prime is 40323329. The reversal of 40323311 is 11332304.

It is a happy number.

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

It is not a de Polignac number, because 40323311 - 2² = 40323307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40323311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40323331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99116 + ... + 99521.

It is an arithmetic number, because the mean of its divisors is an integer number (5959140).

Almost surely, 2^40323311 is an apocalyptic number.

40323311 is a deficient number, since it is larger than the sum of its proper divisors (7349809).

40323311 is a wasteful number, since it uses less digits than its factorization.

40323311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198673.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 40323311 is about 6350.0638579466. The cubic root of 40323311 is about 342.9141412595.

Adding to 40323311 its reverse (11332304), we get a palindrome (51655615).

The spelling of 40323311 in words is "forty million, three hundred twenty-three thousand, three hundred eleven".