2639043 has 48 divisors (see below), whose sum is σ = 4642560. Its totient is φ = 1425600.

The previous prime is 2639041. The next prime is 2639069. The reversal of 2639043 is 3409362.

It is not a de Polignac number, because 2639043 - 2¹ = 2639041 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

2639043 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2638998 and 2639016.

It is not an unprimeable number, because it can be changed into a prime (2639041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43233 + ... + 43293.

It is an arithmetic number, because the mean of its divisors is an integer number (96720).

2^2639043 is an apocalyptic number.

2639043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2639043 is a deficient number, since it is larger than the sum of its proper divisors (2003517).

2639043 is a wasteful number, since it uses less digits than its factorization.

2639043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 2639043 is about 1624.5131578415. The cubic root of 2639043 is about 138.1917623924.

The spelling of 2639043 in words is "two million, six hundred thirty-nine thousand, forty-three".