20093520 has 80 divisors (see below), whose sum is σ = 64460160. Its totient is φ = 5171712.

The previous prime is 20093509. The next prime is 20093531. The reversal of 20093520 is 2539002.

It is an interprime number because it is at equal distance from previous prime (20093509) and next prime (20093531).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5517 + ... + 8403.

It is an arithmetic number, because the mean of its divisors is an integer number (805752).

Almost surely, 2^20093520 is an apocalyptic number.

20093520 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 20093520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32230080).

20093520 is an abundant number, since it is smaller than the sum of its proper divisors (44366640).

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

20093520 is a wasteful number, since it uses less digits than its factorization.

20093520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 20093520 is about 4482.5796144631. The cubic root of 20093520 is about 271.8641911412.

The spelling of 20093520 in words is "twenty million, ninety-three thousand, five hundred twenty".