20046560 has 48 divisors (see below), whose sum is σ = 47628000. Its totient is φ = 7973376.

The previous prime is 20046529. The next prime is 20046571. The reversal of 20046560 is 6564002.

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 7 ways as a sum of consecutive naturals, for example, 55661 + ... + 56019.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^20046560 is an apocalyptic number.

20046560 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 20046560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23814000).

20046560 is an abundant number, since it is smaller than the sum of its proper divisors (27581440).

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

20046560 is a wasteful number, since it uses less digits than its factorization.

20046560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20046560 is about 4477.3384951330. The cubic root of 20046560 is about 271.6522372219.

The spelling of 20046560 in words is "twenty million, forty-six thousand, five hundred sixty".