20093820 has 24 divisors (see below), whose sum is σ = 56262864. Its totient is φ = 5358336.

The previous prime is 20093791. The next prime is 20093867. The reversal of 20093820 is 2839002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167389 + ... + 167508.

It is an arithmetic number, because the mean of its divisors is an integer number (2344286).

Almost surely, 2^20093820 is an apocalyptic number.

20093820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20093820 is an abundant number, since it is smaller than the sum of its proper divisors (36169044).

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

20093820 is a wasteful number, since it uses less digits than its factorization.

20093820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334909 (or 334907 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20093820 is about 4482.6130772129. The cubic root of 20093820 is about 271.8655441288.

The spelling of 20093820 in words is "twenty million, ninety-three thousand, eight hundred twenty".