20593444 has 9 divisors (see below), whose sum is σ = 36054417. Its totient is φ = 10292184.

The previous prime is 20593427. The next prime is 20593453. The reversal of 20593444 is 44439502.

It is a happy number.

The square root of 20593444 is 4538.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 879844 + 19713600 = 938^2 + 4440^2 .

It is a super-2 number, since 2×20593444² = 848179871562272, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7942 + ... + 10210.

Almost surely, 2^20593444 is an apocalyptic number.

20593444 is the 4538-th square number.

It is an amenable number.

20593444 is a deficient number, since it is larger than the sum of its proper divisors (15460973).

20593444 is an frugal number, since it uses more digits than its factorization.

20593444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542 (or 2271 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The cubic root of 20593444 is about 274.1003947731.

The spelling of 20593444 in words is "twenty million, five hundred ninety-three thousand, four hundred forty-four".