20093580 has 144 divisors (see below), whose sum is σ = 68001024. Its totient is φ = 4769280.

The previous prime is 20093573. The next prime is 20093603. The reversal of 20093580 is 8539002.

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 47 ways as a sum of consecutive naturals, for example, 72402 + ... + 72678.

Almost surely, 2^20093580 is an apocalyptic number.

20093580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20093580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34000512).

20093580 is an abundant number, since it is smaller than the sum of its proper divisors (47907444).

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

20093580 is a wasteful number, since it uses less digits than its factorization.

20093580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 20093580 is about 4482.5863070330. The cubic root of 20093580 is about 271.8644617398.

The spelling of 20093580 in words is "twenty million, ninety-three thousand, five hundred eighty".