2734557849 has 9 divisors (see below), whose sum is σ = 3950143509. Its totient is φ = 1822933980.

The previous prime is 2734557823. The next prime is 2734557869. The reversal of 2734557849 is 9487554372.

It is a happy number.

The square root of 2734557849 is 52293.

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

2734557849 is a `hidden beast` number, since 2 + 7 + 3 + 4 + 557 + 84 + 9 = 666.

2734557849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2734557849 - 2⁵ = 2734557817 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2734557795 and 2734557804.

It is not an unprimeable number, because it can be changed into a prime (2734557809) 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, 148164 + ... + 165594.

Almost surely, 2^2734557849 is an apocalyptic number.

2734557849 is the 52293-rd square number.

2734557849 is the 26147-th centered octagonal number.

It is an amenable number.

2734557849 is a deficient number, since it is larger than the sum of its proper divisors (1215585660).

2734557849 is an frugal number, since it uses more digits than its factorization.

2734557849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34868 (or 17434 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 54.

The cubic root of 2734557849 is about 1398.3923466067.

The spelling of 2734557849 in words is "two billion, seven hundred thirty-four million, five hundred fifty-seven thousand, eight hundred forty-nine".