40344593 has 2 divisors, whose sum is σ = 40344594. Its totient is φ = 40344592.

The previous prime is 40344571. The next prime is 40344637. The reversal of 40344593 is 39544304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30283009 + 10061584 = 5503^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 40344593 - 2¹² = 40340497 is a prime.

It is not a weakly prime, because it can be changed into another prime (40344523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20172296 + 20172297.

It is an arithmetic number, because the mean of its divisors is an integer number (20172297).

Almost surely, 2^40344593 is an apocalyptic number.

It is an amenable number.

40344593 is a deficient number, since it is larger than the sum of its proper divisors (1).

40344593 is an equidigital number, since it uses as much as digits as its factorization.

40344593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 40344593 is about 6351.7393680786. The cubic root of 40344593 is about 342.9744588529.

Adding to 40344593 its reverse (39544304), we get a palindrome (79888897).

The spelling of 40344593 in words is "forty million, three hundred forty-four thousand, five hundred ninety-three".