20013360 has 40 divisors (see below), whose sum is σ = 62042160. Its totient is φ = 5336832.

The previous prime is 20013353. The next prime is 20013373. The reversal of 20013360 is 6331002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 41455 + ... + 41934.

It is an arithmetic number, because the mean of its divisors is an integer number (1551054).

Almost surely, 2^20013360 is an apocalyptic number.

20013360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013360 is an abundant number, since it is smaller than the sum of its proper divisors (42028800).

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

20013360 is a wasteful number, since it uses less digits than its factorization.

20013360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83405 (or 83399 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20013360 is about 4473.6293990450. The cubic root of 20013360 is about 271.5021892385.

Adding to 20013360 its reverse (6331002), we get a palindrome (26344362).

The spelling of 20013360 in words is "twenty million, thirteen thousand, three hundred sixty".