4239840338 has 4 divisors (see below), whose sum is σ = 6359760510. Its totient is φ = 2119920168.

The previous prime is 4239840337. The next prime is 4239840373. The reversal of 4239840338 is 8330489324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4213697569 + 26142769 = 64913^2 + 5113^2 .

It is not an unprimeable number, because it can be changed into a prime (4239840337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059960083 + ... + 1059960086.

Almost surely, 2^4239840338 is an apocalyptic number.

4239840338 is a deficient number, since it is larger than the sum of its proper divisors (2119920172).

4239840338 is a wasteful number, since it uses less digits than its factorization.

4239840338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119920171.

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 4239840338 is about 65114.0563780203. The cubic root of 4239840338 is about 1618.5141507424.

The spelling of 4239840338 in words is "four billion, two hundred thirty-nine million, eight hundred forty thousand, three hundred thirty-eight".