20839010 has 32 divisors (see below), whose sum is σ = 40098240. Its totient is φ = 7774272.

The previous prime is 20839009. The next prime is 20839033. The reversal of 20839010 is 1093802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11912 + ... + 13548.

It is an arithmetic number, because the mean of its divisors is an integer number (1253070).

Almost surely, 2^20839010 is an apocalyptic number.

20839010 is a deficient number, since it is larger than the sum of its proper divisors (19259230).

20839010 is a wasteful number, since it uses less digits than its factorization.

20839010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 20839010 is about 4564.9764511988. The cubic root of 20839010 is about 275.1855937254.

The spelling of 20839010 in words is "twenty million, eight hundred thirty-nine thousand, ten".