2288922509 has 4 divisors (see below), whose sum is σ = 2290810716. Its totient is φ = 2287034304.

The previous prime is 2288922491. The next prime is 2288922557. The reversal of 2288922509 is 9052298822.

It is a happy number.

2288922509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 700660900 + 1588261609 = 26470^2 + 39853^2 .

It is a cyclic number.

It is not a de Polignac number, because 2288922509 - 2⁸ = 2288922253 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 (2288922589) 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, 942284 + ... + 944709.

It is an arithmetic number, because the mean of its divisors is an integer number (572702679).

Almost surely, 2^2288922509 is an apocalyptic number.

It is an amenable number.

2288922509 is a deficient number, since it is larger than the sum of its proper divisors (1888207).

2288922509 is a wasteful number, since it uses less digits than its factorization.

2288922509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888206.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 2288922509 is about 47842.6850103545. The cubic root of 2288922509 is about 1317.8835284380.

The spelling of 2288922509 in words is "two billion, two hundred eighty-eight million, nine hundred twenty-two thousand, five hundred nine".