40490033 has 2 divisors, whose sum is σ = 40490034. Its totient is φ = 40490032.

The previous prime is 40490011. The next prime is 40490053. The reversal of 40490033 is 33009404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40347904 + 142129 = 6352^2 + 377^2 .

It is a cyclic number.

It is not a de Polignac number, because 40490033 - 2¹⁴ = 40473649 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40489990 and 40490008.

It is not a weakly prime, because it can be changed into another prime (40490053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20245016 + 20245017.

It is an arithmetic number, because the mean of its divisors is an integer number (20245017).

Almost surely, 2^40490033 is an apocalyptic number.

It is an amenable number.

40490033 is a deficient number, since it is larger than the sum of its proper divisors (1).

40490033 is an equidigital number, since it uses as much as digits as its factorization.

40490033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 40490033 is about 6363.1779010177. The cubic root of 40490033 is about 343.3860991785.

Adding to 40490033 its reverse (33009404), we get a palindrome (73499437).

The spelling of 40490033 in words is "forty million, four hundred ninety thousand, thirty-three".