20441328 has 20 divisors (see below), whose sum is σ = 52806888. Its totient is φ = 6813760.

The previous prime is 20441269. The next prime is 20441347. The reversal of 20441328 is 82314402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20441298 and 20441307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212883 + ... + 212978.

Almost surely, 2^20441328 is an apocalyptic number.

It is an amenable number.

20441328 is an abundant number, since it is smaller than the sum of its proper divisors (32365560).

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

20441328 is a wasteful number, since it uses less digits than its factorization.

20441328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425872 (or 425866 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20441328 is about 4521.2086879506. The cubic root of 20441328 is about 273.4238341339.

The spelling of 20441328 in words is "twenty million, four hundred forty-one thousand, three hundred twenty-eight".