20743096 has 32 divisors (see below), whose sum is σ = 43023600. Its totient is φ = 9296640.

The previous prime is 20743081. The next prime is 20743097. The reversal of 20743096 is 69034702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20743097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4810 + ... + 8038.

Almost surely, 2^20743096 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 20743096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21511800).

20743096 is an abundant number, since it is smaller than the sum of its proper divisors (22280504).

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

20743096 is a wasteful number, since it uses less digits than its factorization.

20743096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 20743096 is about 4554.4589140753. The cubic root of 20743096 is about 274.7627529577.

Adding to 20743096 its reverse (69034702), we get a palindrome (89777798).

The spelling of 20743096 in words is "twenty million, seven hundred forty-three thousand, ninety-six".