2734239257 has 4 divisors (see below), whose sum is σ = 2737920000. Its totient is φ = 2730558516.

The previous prime is 2734239253. The next prime is 2734239269. The reversal of 2734239257 is 7529324372.

2734239257 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2734239257 - 2² = 2734239253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2734239253) 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, 1839257 + ... + 1840742.

It is an arithmetic number, because the mean of its divisors is an integer number (684480000).

Almost surely, 2^2734239257 is an apocalyptic number.

It is an amenable number.

2734239257 is a deficient number, since it is larger than the sum of its proper divisors (3680743).

2734239257 is an equidigital number, since it uses as much as digits as its factorization.

2734239257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680742.

The product of its digits is 635040, while the sum is 44.

The square root of 2734239257 is about 52289.9536909338. The cubic root of 2734239257 is about 1398.3380375323.

The spelling of 2734239257 in words is "two billion, seven hundred thirty-four million, two hundred thirty-nine thousand, two hundred fifty-seven".