20440596 has 48 divisors (see below), whose sum is σ = 55097280. Its totient is φ = 5829120.

The previous prime is 20440573. The next prime is 20440597. The reversal of 20440596 is 69504402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440597) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2311 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (1147860).

Almost surely, 2^20440596 is an apocalyptic number.

It is an amenable number.

20440596 is an abundant number, since it is smaller than the sum of its proper divisors (34656684).

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

20440596 is a wasteful number, since it uses less digits than its factorization.

20440596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9144 (or 9142 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 20440596 is about 4521.1277354218. The cubic root of 20440596 is about 273.4205703434.

Adding to 20440596 its reverse (69504402), we get a palindrome (89944998).

The spelling of 20440596 in words is "twenty million, four hundred forty thousand, five hundred ninety-six".