40313233 has 4 divisors (see below), whose sum is σ = 40333108. Its totient is φ = 40293360.

The previous prime is 40313201. The next prime is 40313243. The reversal of 40313233 is 33231304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10969344 + 29343889 = 3312^2 + 5417^2 .

It is a cyclic number.

It is not a de Polignac number, because 40313233 - 2⁵ = 40313201 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 40313233.

It is not an unprimeable number, because it can be changed into a prime (40313243) 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, 6498 + ... + 11083.

It is an arithmetic number, because the mean of its divisors is an integer number (10083277).

Almost surely, 2^40313233 is an apocalyptic number.

It is an amenable number.

40313233 is a deficient number, since it is larger than the sum of its proper divisors (19875).

40313233 is a wasteful number, since it uses less digits than its factorization.

40313233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19874.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 40313233 is about 6349.2702730314. The cubic root of 40313233 is about 342.8855707166.

Adding to 40313233 its reverse (33231304), we get a palindrome (73544537).

The spelling of 40313233 in words is "forty million, three hundred thirteen thousand, two hundred thirty-three".