2694840439 has 2 divisors, whose sum is σ = 2694840440. Its totient is φ = 2694840438.

The previous prime is 2694840427. The next prime is 2694840469. The reversal of 2694840439 is 9340484962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2694840439 - 2¹³ = 2694832247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2694840392 and 2694840401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2694840469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1347420219 + 1347420220.

It is an arithmetic number, because the mean of its divisors is an integer number (1347420220).

Almost surely, 2^2694840439 is an apocalyptic number.

2694840439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2694840439 is an equidigital number, since it uses as much as digits as its factorization.

2694840439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The square root of 2694840439 is about 51911.8525868611. The cubic root of 2694840439 is about 1391.5891007593.

The spelling of 2694840439 in words is "two billion, six hundred ninety-four million, eight hundred forty thousand, four hundred thirty-nine".