40204433 has 2 divisors, whose sum is σ = 40204434. Its totient is φ = 40204432.

The previous prime is 40204421. The next prime is 40204457. The reversal of 40204433 is 33440204.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39853969 + 350464 = 6313^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 40204433 - 2¹² = 40200337 is a prime.

It is not a weakly prime, because it can be changed into another prime (40204033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20102216 + 20102217.

It is an arithmetic number, because the mean of its divisors is an integer number (20102217).

Almost surely, 2^40204433 is an apocalyptic number.

It is an amenable number.

40204433 is a deficient number, since it is larger than the sum of its proper divisors (1).

40204433 is an equidigital number, since it uses as much as digits as its factorization.

40204433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40204433 is about 6340.6965705670. The cubic root of 40204433 is about 342.5768254323.

Adding to 40204433 its reverse (33440204), we get a palindrome (73644637).

The spelling of 40204433 in words is "forty million, two hundred four thousand, four hundred thirty-three".