2540834399 has 8 divisors (see below), whose sum is σ = 2692556928. Its totient is φ = 2389363200.

The previous prime is 2540834371. The next prime is 2540834407. The reversal of 2540834399 is 9934380452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2540834399 - 2²⁸ = 2272398943 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 (2540834339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41807 + ... + 82640.

It is an arithmetic number, because the mean of its divisors is an integer number (336569616).

Almost surely, 2^2540834399 is an apocalyptic number.

2540834399 is a deficient number, since it is larger than the sum of its proper divisors (151722529).

2540834399 is a wasteful number, since it uses less digits than its factorization.

2540834399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125665.

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 2540834399 is about 50406.6900222580. The cubic root of 2540834399 is about 1364.5583778015.

The spelling of 2540834399 in words is "two billion, five hundred forty million, eight hundred thirty-four thousand, three hundred ninety-nine".