400064059 has 2 divisors, whose sum is σ = 400064060. Its totient is φ = 400064058.

The previous prime is 400064053. The next prime is 400064089. The reversal of 400064059 is 950460004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400064059 - 2⁷ = 400063931 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400064053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200032029 + 200032030.

It is an arithmetic number, because the mean of its divisors is an integer number (200032030).

Almost surely, 2^400064059 is an apocalyptic number.

400064059 is a deficient number, since it is larger than the sum of its proper divisors (1).

400064059 is an equidigital number, since it uses as much as digits as its factorization.

400064059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 400064059 is about 20001.6014108871. The cubic root of 400064059 is about 736.8456301909.

The spelling of 400064059 in words is "four hundred million, sixty-four thousand, fifty-nine".