20593044 has 72 divisors (see below), whose sum is σ = 54486432. Its totient is φ = 6552000.

The previous prime is 20593039. The next prime is 20593049. The reversal of 20593044 is 44039502.

It is an interprime number because it is at equal distance from previous prime (20593039) and next prime (20593049).

It is a super-2 number, since 2×20593044² = 848146922371872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20592999 and 20593017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20593049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81919 + ... + 82169.

It is an arithmetic number, because the mean of its divisors is an integer number (756756).

Almost surely, 2^20593044 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 20593044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27243216).

20593044 is an abundant number, since it is smaller than the sum of its proper divisors (33893388).

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

20593044 is a wasteful number, since it uses less digits than its factorization.

20593044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20593044 is about 4537.9559275074. The cubic root of 20593044 is about 274.0986200842.

The spelling of 20593044 in words is "twenty million, five hundred ninety-three thousand, forty-four".