409326020 has 12 divisors (see below), whose sum is σ = 859584684. Its totient is φ = 163730400.

The previous prime is 409326013. The next prime is 409326053. The reversal of 409326020 is 20623904.

It can be written as a sum of positive squares in 2 ways, for example, as 158357056 + 250968964 = 12584^2 + 15842^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10233131 + ... + 10233170.

It is an arithmetic number, because the mean of its divisors is an integer number (71632057).

Almost surely, 2^409326020 is an apocalyptic number.

It is an amenable number.

409326020 is an abundant number, since it is smaller than the sum of its proper divisors (450258664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409326020 is a wasteful number, since it uses less digits than its factorization.

409326020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20466310 (or 20466308 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 409326020 is about 20231.8071362891. The cubic root of 409326020 is about 742.4885901802.

Adding to 409326020 its reverse (20623904), we get a palindrome (429949924).

The spelling of 409326020 in words is "four hundred nine million, three hundred twenty-six thousand, twenty".