304112405 has 8 divisors (see below), whose sum is σ = 386401752. Its totient is φ = 228978688.

The previous prime is 304112381. The next prime is 304112407. The reversal of 304112405 is 504211403.

It can be written as a sum of positive squares in 4 ways, for example, as 8031556 + 296080849 = 2834^2 + 17207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304112405 - 2²⁶ = 237003541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304112407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1788812 + ... + 1788981.

It is an arithmetic number, because the mean of its divisors is an integer number (48300219).

Almost surely, 2^304112405 is an apocalyptic number.

It is an amenable number.

304112405 is a deficient number, since it is larger than the sum of its proper divisors (82289347).

304112405 is a wasteful number, since it uses less digits than its factorization.

304112405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577815.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 304112405 is about 17438.8189106946. The cubic root of 304112405 is about 672.4779445787.

Adding to 304112405 its reverse (504211403), we get a palindrome (808323808).

The spelling of 304112405 in words is "three hundred four million, one hundred twelve thousand, four hundred five".