306307404 has 144 divisors (see below), whose sum is σ = 882545664. Its totient is φ = 88905600.

The previous prime is 306307403. The next prime is 306307453. The reversal of 306307404 is 404703603.

It is not an unprimeable number, because it can be changed into a prime (306307403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 623599 + ... + 624089.

Almost surely, 2^306307404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306307404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441272832).

306307404 is an abundant number, since it is smaller than the sum of its proper divisors (576238260).

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

306307404 is a wasteful number, since it uses less digits than its factorization.

306307404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 306307404 is about 17501.6400374365. The cubic root of 306307404 is about 674.0919873159.

The spelling of 306307404 in words is "three hundred six million, three hundred seven thousand, four hundred four".