20441724 has 24 divisors (see below), whose sum is σ = 48303360. Its totient is φ = 6727344.

The previous prime is 20441699. The next prime is 20441747. The reversal of 20441724 is 42714402.

It is a junction number, because it is equal to n+sod(n) for n = 20441694 and 20441703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9834 + ... + 11729.

It is an arithmetic number, because the mean of its divisors is an integer number (2012640).

Almost surely, 2^20441724 is an apocalyptic number.

It is an amenable number.

20441724 is an abundant number, since it is smaller than the sum of its proper divisors (27861636).

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

20441724 is a wasteful number, since it uses less digits than its factorization.

20441724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21649 (or 21647 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 20441724 is about 4521.2524813374. The cubic root of 20441724 is about 273.4255997586.

The spelling of 20441724 in words is "twenty million, four hundred forty-one thousand, seven hundred twenty-four".