20083860 has 36 divisors (see below), whose sum is σ = 60921588. Its totient is φ = 5355648.

The previous prime is 20083849. The next prime is 20083897. The reversal of 20083860 is 6838002.

It can be written as a sum of positive squares in 2 ways, for example, as 6290064 + 13793796 = 2508^2 + 3714^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20083860² = 806722864999200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55609 + ... + 55968.

Almost surely, 2^20083860 is an apocalyptic number.

20083860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20083860 is an abundant number, since it is smaller than the sum of its proper divisors (40837728).

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

20083860 is a wasteful number, since it uses less digits than its factorization.

20083860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111592 (or 111587 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20083860 is about 4481.5019803633. The cubic root of 20083860 is about 271.8206177395.

The spelling of 20083860 in words is "twenty million, eighty-three thousand, eight hundred sixty".