20093444 has 48 divisors (see below), whose sum is σ = 43013376. Its totient is φ = 8025600.

The previous prime is 20093429. The next prime is 20093449. The reversal of 20093444 is 44439002.

It is a super-2 number, since 2×20093444² = 807492983562272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20093449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26024 + ... + 26784.

It is an arithmetic number, because the mean of its divisors is an integer number (896112).

Almost surely, 2^20093444 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 20093444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21506688).

20093444 is an abundant number, since it is smaller than the sum of its proper divisors (22919932).

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

20093444 is a wasteful number, since it uses less digits than its factorization.

20093444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20093444 is about 4482.5711371935. The cubic root of 20093444 is about 271.8638483822.

The spelling of 20093444 in words is "twenty million, ninety-three thousand, four hundred forty-four".