307321434 has 36 divisors (see below), whose sum is σ = 774577674. Its totient is φ = 87805872.

The previous prime is 307321433. The next prime is 307321457. The reversal of 307321434 is 434123703.

307321434 is a `hidden beast` number, since 307 + 321 + 4 + 34 = 666.

307321434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 190357209 + 116964225 = 13797^2 + 10815^2 .

It is a junction number, because it is equal to n+sod(n) for n = 307321398 and 307321407.

It is not an unprimeable number, because it can be changed into a prime (307321433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 173337 + ... + 175100.

Almost surely, 2^307321434 is an apocalyptic number.

307321434 is an abundant number, since it is smaller than the sum of its proper divisors (467256240).

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

307321434 is a wasteful number, since it uses less digits than its factorization.

307321434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348459 (or 348449 counting only the distinct ones).

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

The square root of 307321434 is about 17530.5856719050. The cubic root of 307321434 is about 674.8350279964.

The spelling of 307321434 in words is "three hundred seven million, three hundred twenty-one thousand, four hundred thirty-four".