40538833 has 2 divisors, whose sum is σ = 40538834. Its totient is φ = 40538832.

The previous prime is 40538803. The next prime is 40538881. The reversal of 40538833 is 33883504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40538689 + 144 = 6367^2 + 12^2 .

It is a cyclic number.

It is not a de Polignac number, because 40538833 - 2⁵ = 40538801 is a prime.

It is not a weakly prime, because it can be changed into another prime (40538803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20269416 + 20269417.

It is an arithmetic number, because the mean of its divisors is an integer number (20269417).

Almost surely, 2^40538833 is an apocalyptic number.

It is an amenable number.

40538833 is a deficient number, since it is larger than the sum of its proper divisors (1).

40538833 is an equidigital number, since it uses as much as digits as its factorization.

40538833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 40538833 is about 6367.0113082984. The cubic root of 40538833 is about 343.5239974279.

The spelling of 40538833 in words is "forty million, five hundred thirty-eight thousand, eight hundred thirty-three".