20320060 has 24 divisors (see below), whose sum is σ = 43189776. Its totient is φ = 8029440.

The previous prime is 20320057. The next prime is 20320073. The reversal of 20320060 is 6002302.

It is a self number, because there is not a number n which added to its sum of digits gives 20320060.

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, 4461 + ... + 7780.

It is an arithmetic number, because the mean of its divisors is an integer number (1799574).

Almost surely, 2^20320060 is an apocalyptic number.

20320060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20320060 is an abundant number, since it is smaller than the sum of its proper divisors (22869716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20320060 is a wasteful number, since it uses less digits than its factorization.

20320060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12333 (or 12331 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20320060 is about 4507.7777230028. Note that the first 4 decimals coincide. The cubic root of 20320060 is about 272.8820665367.

Adding to 20320060 its reverse (6002302), we get a palindrome (26322362).

The spelling of 20320060 in words is "twenty million, three hundred twenty thousand, sixty".