305415404 has 48 divisors (see below), whose sum is σ = 650244672. Its totient is φ = 122529792.

The previous prime is 305415403. The next prime is 305415431. The reversal of 305415404 is 404514503.

305415404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (305415403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92144 + ... + 95400.

It is an arithmetic number, because the mean of its divisors is an integer number (13546764).

Almost surely, 2^305415404 is an apocalyptic number.

305415404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305415404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325122336).

305415404 is an abundant number, since it is smaller than the sum of its proper divisors (344829268).

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

305415404 is a wasteful number, since it uses less digits than its factorization.

305415404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482 (or 3480 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 305415404 is about 17476.1381317498. The cubic root of 305415404 is about 673.4370084018.

Adding to 305415404 its reverse (404514503), we get a palindrome (709929907).

Subtracting 305415404 from its reverse (404514503), we obtain a palindrome (99099099).

The spelling of 305415404 in words is "three hundred five million, four hundred fifteen thousand, four hundred four".