40013759 has 2 divisors, whose sum is σ = 40013760. Its totient is φ = 40013758.

The previous prime is 40013731. The next prime is 40013773. The reversal of 40013759 is 95731004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40013759 - 2¹² = 40009663 is a prime.

It is a super-2 number, since 2×40013759² = 3202201818620162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40012759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20006879 + 20006880.

It is an arithmetic number, because the mean of its divisors is an integer number (20006880).

Almost surely, 2^40013759 is an apocalyptic number.

40013759 is a deficient number, since it is larger than the sum of its proper divisors (1).

40013759 is an equidigital number, since it uses as much as digits as its factorization.

40013759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 40013759 is about 6325.6429712718. The cubic root of 40013759 is about 342.0343974386.

The spelling of 40013759 in words is "forty million, thirteen thousand, seven hundred fifty-nine".