4239554939 has 4 divisors (see below), whose sum is σ = 4342958760. Its totient is φ = 4136151120.

The previous prime is 4239554929. The next prime is 4239554951. The reversal of 4239554939 is 9394559324.

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

It is a cyclic number.

It is not a de Polignac number, because 4239554939 - 2⁴ = 4239554923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4239554909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51701849 + ... + 51701930.

It is an arithmetic number, because the mean of its divisors is an integer number (1085739690).

Almost surely, 2^4239554939 is an apocalyptic number.

4239554939 is a deficient number, since it is larger than the sum of its proper divisors (103403821).

4239554939 is a wasteful number, since it uses less digits than its factorization.

4239554939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103403820.

The product of its digits is 5248800, while the sum is 53.

The square root of 4239554939 is about 65111.8648097257. The cubic root of 4239554939 is about 1618.4778339122.

The spelling of 4239554939 in words is "four billion, two hundred thirty-nine million, five hundred fifty-four thousand, nine hundred thirty-nine".