40220599 has 2 divisors, whose sum is σ = 40220600. Its totient is φ = 40220598.

The previous prime is 40220581. The next prime is 40220639. The reversal of 40220599 is 99502204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40220599 - 2⁵ = 40220567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40220599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40220699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110299 + 20110300.

It is an arithmetic number, because the mean of its divisors is an integer number (20110300).

Almost surely, 2^40220599 is an apocalyptic number.

40220599 is a deficient number, since it is larger than the sum of its proper divisors (1).

40220599 is an equidigital number, since it uses as much as digits as its factorization.

40220599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40220599 is about 6341.9712235235. The cubic root of 40220599 is about 342.6227354181.

The spelling of 40220599 in words is "forty million, two hundred twenty thousand, five hundred ninety-nine".