40744513 has 2 divisors, whose sum is σ = 40744514. Its totient is φ = 40744512.

The previous prime is 40744499. The next prime is 40744519. The reversal of 40744513 is 31544704.

40744513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40602384 + 142129 = 6372^2 + 377^2 .

It is a cyclic number.

It is not a de Polignac number, because 40744513 - 2²¹ = 38647361 is a prime.

It is not a weakly prime, because it can be changed into another prime (40744519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20372256 + 20372257.

It is an arithmetic number, because the mean of its divisors is an integer number (20372257).

Almost surely, 2^40744513 is an apocalyptic number.

It is an amenable number.

40744513 is a deficient number, since it is larger than the sum of its proper divisors (1).

40744513 is an equidigital number, since it uses as much as digits as its factorization.

40744513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 40744513 is about 6383.1428779246. The cubic root of 40744513 is about 344.1039915680.

The spelling of 40744513 in words is "forty million, seven hundred forty-four thousand, five hundred thirteen".