307940514 has 64 divisors (see below), whose sum is σ = 738754560. Its totient is φ = 83666880.

The previous prime is 307940513. The next prime is 307940527. The reversal of 307940514 is 415049703.

It is not an unprimeable number, because it can be changed into a prime (307940513) 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 31 ways as a sum of consecutive naturals, for example, 183672 + ... + 185340.

It is an arithmetic number, because the mean of its divisors is an integer number (11543040).

Almost surely, 2^307940514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307940514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369377280).

307940514 is an abundant number, since it is smaller than the sum of its proper divisors (430814046).

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

307940514 is a wasteful number, since it uses less digits than its factorization.

307940514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 307940514 is about 17548.2339282333. The cubic root of 307940514 is about 675.2878618569.

The spelling of 307940514 in words is "three hundred seven million, nine hundred forty thousand, five hundred fourteen".