307412138 has 8 divisors (see below), whose sum is σ = 503038080. Its totient is φ = 139732780.

The previous prime is 307412081. The next prime is 307412143. The reversal of 307412138 is 831214703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 307412138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6986618 + ... + 6986661.

It is an arithmetic number, because the mean of its divisors is an integer number (62879760).

Almost surely, 2^307412138 is an apocalyptic number.

307412138 is a deficient number, since it is larger than the sum of its proper divisors (195625942).

307412138 is a wasteful number, since it uses less digits than its factorization.

307412138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13973292.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 307412138 is about 17533.1725024309. The cubic root of 307412138 is about 674.9014125791.

The spelling of 307412138 in words is "three hundred seven million, four hundred twelve thousand, one hundred thirty-eight".