40360591 has 2 divisors, whose sum is σ = 40360592. Its totient is φ = 40360590.

The previous prime is 40360577. The next prime is 40360597. The reversal of 40360591 is 19506304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40360591 - 2⁵ = 40360559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40360597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20180295 + 20180296.

It is an arithmetic number, because the mean of its divisors is an integer number (20180296).

Almost surely, 2^40360591 is an apocalyptic number.

40360591 is a deficient number, since it is larger than the sum of its proper divisors (1).

40360591 is an equidigital number, since it uses as much as digits as its factorization.

40360591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 40360591 is about 6352.9985833463. The cubic root of 40360591 is about 343.0197865321.

Adding to 40360591 its reverse (19506304), we get a palindrome (59866895).

The spelling of 40360591 in words is "forty million, three hundred sixty thousand, five hundred ninety-one".