20360844 has 72 divisors (see below), whose sum is σ = 60220160. Its totient is φ = 5679072.

The previous prime is 20360839. The next prime is 20360861. The reversal of 20360844 is 44806302.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9897 + ... + 11775.

Almost surely, 2^20360844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20360844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30110080).

20360844 is an abundant number, since it is smaller than the sum of its proper divisors (39859316).

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

20360844 is a wasteful number, since it uses less digits than its factorization.

20360844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20360844 is about 4512.2991922079. The cubic root of 20360844 is about 273.0645099734.

The spelling of 20360844 in words is "twenty million, three hundred sixty thousand, eight hundred forty-four".