2640683039 has 4 divisors (see below), whose sum is σ = 2641817256. Its totient is φ = 2639548824.

The previous prime is 2640683027. The next prime is 2640683041. The reversal of 2640683039 is 9303860462.

2640683039 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.

It is a cyclic number.

It is not a de Polignac number, because 2640683039 - 2¹⁶ = 2640617503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2640682987 and 2640683005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640683069) 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, 563609 + ... + 568274.

It is an arithmetic number, because the mean of its divisors is an integer number (660454314).

Almost surely, 2^2640683039 is an apocalyptic number.

2640683039 is a deficient number, since it is larger than the sum of its proper divisors (1134217).

2640683039 is a wasteful number, since it uses less digits than its factorization.

2640683039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134216.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 2640683039 is about 51387.5766990427. The cubic root of 2640683039 is about 1382.2038298800.

The spelling of 2640683039 in words is "two billion, six hundred forty million, six hundred eighty-three thousand, thirty-nine".