40422559 has 2 divisors, whose sum is σ = 40422560. Its totient is φ = 40422558.

The previous prime is 40422553. The next prime is 40422563. The reversal of 40422559 is 95522404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40422559 is a prime.

It is a super-2 number, since 2×40422559² = 3267966552216962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40422559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40422553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20211279 + 20211280.

It is an arithmetic number, because the mean of its divisors is an integer number (20211280).

Almost surely, 2^40422559 is an apocalyptic number.

40422559 is a deficient number, since it is larger than the sum of its proper divisors (1).

40422559 is an equidigital number, since it uses as much as digits as its factorization.

40422559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 40422559 is about 6357.8737798104. The cubic root of 40422559 is about 343.1952496114.

The spelling of 40422559 in words is "forty million, four hundred twenty-two thousand, five hundred fifty-nine".