806342439 has 32 divisors (see below), whose sum is σ = 1254090240. Its totient is φ = 451308672.

The previous prime is 806342399. The next prime is 806342497. The reversal of 806342439 is 934243608.

It is not a de Polignac number, because 806342439 - 2⁸ = 806342183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 806342397 and 806342406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806342839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391737 + ... + 393789.

It is an arithmetic number, because the mean of its divisors is an integer number (39190320).

Almost surely, 2^806342439 is an apocalyptic number.

806342439 is a deficient number, since it is larger than the sum of its proper divisors (447747801).

806342439 is a wasteful number, since it uses less digits than its factorization.

806342439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 806342439 is about 28396.1694423737. The cubic root of 806342439 is about 930.7645614702.

The spelling of 806342439 in words is "eight hundred six million, three hundred forty-two thousand, four hundred thirty-nine".