306134140 has 48 divisors (see below), whose sum is σ = 722449728. Its totient is φ = 108117504.

The previous prime is 306134119. The next prime is 306134141. The reversal of 306134140 is 41431603.

It is a super-2 number, since 2×306134140² = 187436223347079200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306134141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19617 + ... + 31576.

It is an arithmetic number, because the mean of its divisors is an integer number (15051036).

Almost surely, 2^306134140 is an apocalyptic number.

It is an amenable number.

306134140 is an abundant number, since it is smaller than the sum of its proper divisors (416315588).

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

306134140 is a wasteful number, since it uses less digits than its factorization.

306134140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51238 (or 51236 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 306134140 is about 17496.6894011410. The cubic root of 306134140 is about 673.9648624064.

Adding to 306134140 its reverse (41431603), we get a palindrome (347565743).

The spelling of 306134140 in words is "three hundred six million, one hundred thirty-four thousand, one hundred forty".