402200000309 has 4 divisors (see below), whose sum is σ = 402248837004. Its totient is φ = 402151163616.

The previous prime is 402200000261. The next prime is 402200000317. The reversal of 402200000309 is 903000002204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 269760778225 + 132439222084 = 519385^2 + 363922^2 .

It is a cyclic number.

It is not a de Polignac number, because 402200000309 - 2²⁰ = 402198951733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402200000359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24405992 + ... + 24422465.

It is an arithmetic number, because the mean of its divisors is an integer number (100562209251).

Almost surely, 2^402200000309 is an apocalyptic number.

It is an amenable number.

402200000309 is a deficient number, since it is larger than the sum of its proper divisors (48836695).

402200000309 is an equidigital number, since it uses as much as digits as its factorization.

402200000309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48836694.

The product of its (nonzero) digits is 432, while the sum is 20.

The spelling of 402200000309 in words is "four hundred two billion, two hundred million, three hundred nine", and thus it is an aban number.