20441304 has 48 divisors (see below), whose sum is σ = 59623200. Its totient is φ = 6289344.

The previous prime is 20441269. The next prime is 20441347. The reversal of 20441304 is 40314402.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9984 + ... + 11855.

It is an arithmetic number, because the mean of its divisors is an integer number (1242150).

Almost surely, 2^20441304 is an apocalyptic number.

20441304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20441304 is an abundant number, since it is smaller than the sum of its proper divisors (39181896).

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

20441304 is a wasteful number, since it uses less digits than its factorization.

20441304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21864 (or 21857 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20441304 is about 4521.2060337923. The cubic root of 20441304 is about 273.4237271256.

Adding to 20441304 its reverse (40314402), we get a palindrome (60755706).

The spelling of 20441304 in words is "twenty million, four hundred forty-one thousand, three hundred four".