20832790 has 16 divisors (see below), whose sum is σ = 40908240. Its totient is φ = 7575520.

The previous prime is 20832767. The next prime is 20832821. The reversal of 20832790 is 9723802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94585 + ... + 94804.

It is an arithmetic number, because the mean of its divisors is an integer number (2556765).

Almost surely, 2^20832790 is an apocalyptic number.

20832790 is a deficient number, since it is larger than the sum of its proper divisors (20075450).

20832790 is a wasteful number, since it uses less digits than its factorization.

20832790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189407.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20832790 is about 4564.2951263037. The cubic root of 20832790 is about 275.1582119909.

The spelling of 20832790 in words is "twenty million, eight hundred thirty-two thousand, seven hundred ninety".