20304352 has 12 divisors (see below), whose sum is σ = 39974256. Its totient is φ = 10152160.

The previous prime is 20304313. The next prime is 20304413. The reversal of 20304352 is 25340302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317224 + ... + 317287.

It is an arithmetic number, because the mean of its divisors is an integer number (3331188).

Almost surely, 2^20304352 is an apocalyptic number.

It is an amenable number.

20304352 is a deficient number, since it is larger than the sum of its proper divisors (19669904).

20304352 is an equidigital number, since it uses as much as digits as its factorization.

20304352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634521 (or 634513 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20304352 is about 4506.0350642222. The cubic root of 20304352 is about 272.8117331406.

Adding to 20304352 its reverse (25340302), we get a palindrome (45644654).

The spelling of 20304352 in words is "twenty million, three hundred four thousand, three hundred fifty-two".