304401420 has 36 divisors (see below), whose sum is σ = 923351520. Its totient is φ = 81173664.

The previous prime is 304401403. The next prime is 304401437. The reversal of 304401420 is 24104403.

It is an interprime number because it is at equal distance from previous prime (304401403) and next prime (304401437).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 304401393 and 304401402.

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, 845380 + ... + 845739.

Almost surely, 2^304401420 is an apocalyptic number.

304401420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304401420 is an abundant number, since it is smaller than the sum of its proper divisors (618950100).

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

304401420 is a wasteful number, since it uses less digits than its factorization.

304401420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691134 (or 1691129 counting only the distinct ones).

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

The square root of 304401420 is about 17447.1034845329. The cubic root of 304401420 is about 672.6909082431.

Adding to 304401420 its reverse (24104403), we get a palindrome (328505823).

The spelling of 304401420 in words is "three hundred four million, four hundred one thousand, four hundred twenty".