304632020 has 144 divisors (see below), whose sum is σ = 822259200. Its totient is φ = 94691520.

The previous prime is 304632019. The next prime is 304632047. The reversal of 304632020 is 20236403.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 304631983 and 304632001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 829877 + ... + 830243.

Almost surely, 2^304632020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304632020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411129600).

304632020 is an abundant number, since it is smaller than the sum of its proper divisors (517627180).

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

304632020 is a wasteful number, since it uses less digits than its factorization.

304632020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 304632020 is about 17453.7107802324. The cubic root of 304632020 is about 672.8607315516.

Adding to 304632020 its reverse (20236403), we get a palindrome (324868423).

The spelling of 304632020 in words is "three hundred four million, six hundred thirty-two thousand, twenty".