40011233 has 2 divisors, whose sum is σ = 40011234. Its totient is φ = 40011232.

The previous prime is 40011211. The next prime is 40011281. The reversal of 40011233 is 33211004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39150049 + 861184 = 6257^2 + 928^2 .

It is a cyclic number.

It is not a de Polignac number, because 40011233 - 2¹⁴ = 39994849 is a prime.

It is not a weakly prime, because it can be changed into another prime (40011133) 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 as a sum of consecutive naturals, namely, 20005616 + 20005617.

It is an arithmetic number, because the mean of its divisors is an integer number (20005617).

Almost surely, 2^40011233 is an apocalyptic number.

It is an amenable number.

40011233 is a deficient number, since it is larger than the sum of its proper divisors (1).

40011233 is an equidigital number, since it uses as much as digits as its factorization.

40011233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 40011233 is about 6325.4433046230. The cubic root of 40011233 is about 342.0271999387.

Adding to 40011233 its reverse (33211004), we get a palindrome (73222237).

The spelling of 40011233 in words is "forty million, eleven thousand, two hundred thirty-three".