40407259 has 2 divisors, whose sum is σ = 40407260. Its totient is φ = 40407258.

The previous prime is 40407239. The next prime is 40407277. The reversal of 40407259 is 95270404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40407259 - 2⁹ = 40406747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40407259.

It is not a weakly prime, because it can be changed into another prime (40407239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20203629 + 20203630.

It is an arithmetic number, because the mean of its divisors is an integer number (20203630).

Almost surely, 2^40407259 is an apocalyptic number.

40407259 is a deficient number, since it is larger than the sum of its proper divisors (1).

40407259 is an equidigital number, since it uses as much as digits as its factorization.

40407259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 40407259 is about 6356.6704334895. The cubic root of 40407259 is about 343.1519441727.

The spelling of 40407259 in words is "forty million, four hundred seven thousand, two hundred fifty-nine".