2646039 has 16 divisors (see below), whose sum is σ = 3878784. Its totient is φ = 1591200.

The previous prime is 2646029. The next prime is 2646041. The reversal of 2646039 is 9306462.

It is not a de Polignac number, because 2646039 - 2⁴ = 2646023 is a prime.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2645997 and 2646015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5752 + ... + 6194.

It is an arithmetic number, because the mean of its divisors is an integer number (242424).

2^2646039 is an apocalyptic number.

2646039 is a deficient number, since it is larger than the sum of its proper divisors (1232745).

2646039 is a wasteful number, since it uses less digits than its factorization.

2646039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 2646039 is about 1626.6649931685. The cubic root of 2646039 is about 138.3137683012.

The spelling of 2646039 in words is "two million, six hundred forty-six thousand, thirty-nine".