40845533 has 2 divisors, whose sum is σ = 40845534. Its totient is φ = 40845532.

The previous prime is 40845529. The next prime is 40845551. The reversal of 40845533 is 33554804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39400729 + 1444804 = 6277^2 + 1202^2 .

It is a cyclic number.

It is not a de Polignac number, because 40845533 - 2² = 40845529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40845533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40845503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20422766 + 20422767.

It is an arithmetic number, because the mean of its divisors is an integer number (20422767).

Almost surely, 2^40845533 is an apocalyptic number.

It is an amenable number.

40845533 is a deficient number, since it is larger than the sum of its proper divisors (1).

40845533 is an equidigital number, since it uses as much as digits as its factorization.

40845533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 40845533 is about 6391.0510090282. The cubic root of 40845533 is about 344.3881418630.

The spelling of 40845533 in words is "forty million, eight hundred forty-five thousand, five hundred thirty-three".