305440404 has 96 divisors (see below), whose sum is σ = 756725760. Its totient is φ = 95791872.

The previous prime is 305440397. The next prime is 305440417. The reversal of 305440404 is 404044503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2229424 + ... + 2229560.

It is an arithmetic number, because the mean of its divisors is an integer number (7882560).

Almost surely, 2^305440404 is an apocalyptic number.

It is an amenable number.

305440404 is an abundant number, since it is smaller than the sum of its proper divisors (451285356).

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

305440404 is a wasteful number, since it uses less digits than its factorization.

305440404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 305440404 is about 17476.8533781113. The cubic root of 305440404 is about 673.4553827925.

Adding to 305440404 its reverse (404044503), we get a palindrome (709484907).

The spelling of 305440404 in words is "three hundred five million, four hundred forty thousand, four hundred four".