2790849449 has 4 divisors (see below), whose sum is σ = 2790963540. Its totient is φ = 2790735360.

The previous prime is 2790849443. The next prime is 2790849487. The reversal of 2790849449 is 9449480972.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2634974224 + 155875225 = 51332^2 + 12485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2790849449 - 2⁴ = 2790849433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2790849394 and 2790849403.

It is not an unprimeable number, because it can be changed into a prime (2790849443) 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, 3764 + ... + 74805.

It is an arithmetic number, because the mean of its divisors is an integer number (697740885).

Almost surely, 2^2790849449 is an apocalyptic number.

It is an amenable number.

2790849449 is a deficient number, since it is larger than the sum of its proper divisors (114091).

2790849449 is an equidigital number, since it uses as much as digits as its factorization.

2790849449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114090.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The square root of 2790849449 is about 52828.4908832346. The cubic root of 2790849449 is about 1407.9226739626.

The spelling of 2790849449 in words is "two billion, seven hundred ninety million, eight hundred forty-nine thousand, four hundred forty-nine".