40223233 has 2 divisors, whose sum is σ = 40223234. Its totient is φ = 40223232.

The previous prime is 40223153. The next prime is 40223257. The reversal of 40223233 is 33232204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38229489 + 1993744 = 6183^2 + 1412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40223233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40223233.

It is not a weakly prime, because it can be changed into another prime (40223933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111616 + 20111617.

It is an arithmetic number, because the mean of its divisors is an integer number (20111617).

Almost surely, 2^40223233 is an apocalyptic number.

It is an amenable number.

40223233 is a deficient number, since it is larger than the sum of its proper divisors (1).

40223233 is an equidigital number, since it uses as much as digits as its factorization.

40223233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 40223233 is about 6342.1788842637. The cubic root of 40223233 is about 342.6302145756.

Adding to 40223233 its reverse (33232204), we get a palindrome (73455437).

The spelling of 40223233 in words is "forty million, two hundred twenty-three thousand, two hundred thirty-three".