2809922738 has 12 divisors (see below), whose sum is σ = 4903028622. Its totient is φ = 1204252560.

The previous prime is 2809922737. The next prime is 2809922743. The reversal of 2809922738 is 8372299082.

It can be written as a sum of positive squares in only one way, i.e., 2562080689 + 247842049 = 50617^2 + 15743^2 .

It is not an unprimeable number, because it can be changed into a prime (2809922737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14336243 + ... + 14336438.

Almost surely, 2^2809922738 is an apocalyptic number.

2809922738 is a deficient number, since it is larger than the sum of its proper divisors (2093105884).

2809922738 is a wasteful number, since it uses less digits than its factorization.

2809922738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28672697 (or 28672690 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 2809922738 is about 53008.7043606991. The cubic root of 2809922738 is about 1411.1227477500.

The spelling of 2809922738 in words is "two billion, eight hundred nine million, nine hundred twenty-two thousand, seven hundred thirty-eight".