7022942809 has 9 divisors (see below), whose sum is σ = 7077243519. Its totient is φ = 6969057480.

The previous prime is 7022942807. The next prime is 7022942851. The reversal of 7022942809 is 9082492207.

The square root of 7022942809 is 83803.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 77387209 + 6945555600 = 8797^2 + 83340^2 .

It is not a de Polignac number, because 7022942809 - 2¹ = 7022942807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7022942807) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15168112 + ... + 15168574.

It is an arithmetic number, because the mean of its divisors is an integer number (786360391).

Almost surely, 2^7022942809 is an apocalyptic number.

7022942809 is the 83803-rd square number.

7022942809 is the 41902-nd centered octagonal number.

It is an amenable number.

7022942809 is a deficient number, since it is larger than the sum of its proper divisors (54300710).

7022942809 is an frugal number, since it uses more digits than its factorization.

7022942809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The cubic root of 7022942809 is about 1915.0188091329.

The spelling of 7022942809 in words is "seven billion, twenty-two million, nine hundred forty-two thousand, eight hundred nine".