20047360 has 80 divisors (see below), whose sum is σ = 49496832. Its totient is φ = 7782400.

The previous prime is 20047327. The next prime is 20047361. The reversal of 20047360 is 6374002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20047361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104865 + ... + 105055.

Almost surely, 2^20047360 is an apocalyptic number.

20047360 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 20047360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24748416).

20047360 is an abundant number, since it is smaller than the sum of its proper divisors (29449472).

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

20047360 is an equidigital number, since it uses as much as digits as its factorization.

20047360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20047360 is about 4477.4278330309. The cubic root of 20047360 is about 271.6558507912.

The spelling of 20047360 in words is "twenty million, forty-seven thousand, three hundred sixty".