306431034 has 32 divisors (see below), whose sum is σ = 754293120. Its totient is φ = 80816832.

The previous prime is 306431017. The next prime is 306431039. The reversal of 306431034 is 430134603.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 306430995 and 306431013.

It is not an unprimeable number, because it can be changed into a prime (306431039) 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, 280069 + ... + 281160.

It is an arithmetic number, because the mean of its divisors is an integer number (23571660).

Almost surely, 2^306431034 is an apocalyptic number.

306431034 is an abundant number, since it is smaller than the sum of its proper divisors (447862086).

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

306431034 is a wasteful number, since it uses less digits than its factorization.

306431034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561254.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 306431034 is about 17505.1716358338. The cubic root of 306431034 is about 674.1826661369.

Adding to 306431034 its reverse (430134603), we get a palindrome (736565637).

The spelling of 306431034 in words is "three hundred six million, four hundred thirty-one thousand, thirty-four".