4307815138 has 12 divisors (see below), whose sum is σ = 7102555110. Its totient is φ = 1958097680.

The previous prime is 4307815133. The next prime is 4307815157. The reversal of 4307815138 is 8315187034.

It can be written as a sum of positive squares in only one way, i.e., 4066230289 + 241584849 = 63767^2 + 15543^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4307815138.

It is not an unprimeable number, because it can be changed into a prime (4307815133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8900203 + ... + 8900686.

Almost surely, 2^4307815138 is an apocalyptic number.

4307815138 is a deficient number, since it is larger than the sum of its proper divisors (2794739972).

4307815138 is a wasteful number, since it uses less digits than its factorization.

4307815138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17800913 (or 17800902 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 4307815138 is about 65633.9480604359. The cubic root of 4307815138 is about 1627.1178871103.

The spelling of 4307815138 in words is "four billion, three hundred seven million, eight hundred fifteen thousand, one hundred thirty-eight".