304210020 has 24 divisors (see below), whose sum is σ = 851788224. Its totient is φ = 81122656.

The previous prime is 304210009. The next prime is 304210031. The reversal of 304210020 is 20012403.

It is an interprime number because it is at equal distance from previous prime (304210009) and next prime (304210031).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 304209978 and 304210005.

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, 2535024 + ... + 2535143.

It is an arithmetic number, because the mean of its divisors is an integer number (35491176).

Almost surely, 2^304210020 is an apocalyptic number.

304210020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304210020 is an abundant number, since it is smaller than the sum of its proper divisors (547578204).

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

304210020 is a wasteful number, since it uses less digits than its factorization.

304210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070179 (or 5070177 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 304210020 is about 17441.6174708655. The cubic root of 304210020 is about 672.5498882758.

Adding to 304210020 its reverse (20012403), we get a palindrome (324222423).

The spelling of 304210020 in words is "three hundred four million, two hundred ten thousand, twenty".