20113360 has 20 divisors (see below), whose sum is σ = 46763748. Its totient is φ = 8045312.

The previous prime is 20113337. The next prime is 20113367. The reversal of 20113360 is 6331102.

It can be written as a sum of positive squares in 2 ways, for example, as 11209104 + 8904256 = 3348^2 + 2984^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125629 + ... + 125788.

Almost surely, 2^20113360 is an apocalyptic number.

20113360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20113360 is an abundant number, since it is smaller than the sum of its proper divisors (26650388).

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

20113360 is a wasteful number, since it uses less digits than its factorization.

20113360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251430 (or 251424 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 20113360 is about 4484.7920799074. The cubic root of 20113360 is about 271.9536397342.

Adding to 20113360 its reverse (6331102), we get a palindrome (26444462).

The spelling of 20113360 in words is "twenty million, one hundred thirteen thousand, three hundred sixty".