4423257939 has 4 divisors (see below), whose sum is σ = 5897677256. Its totient is φ = 2948838624.

The previous prime is 4423257929. The next prime is 4423257959. The reversal of 4423257939 is 9397523244.

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

It is not a de Polignac number, because 4423257939 - 2¹² = 4423253843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4423257929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737209654 + ... + 737209659.

It is an arithmetic number, because the mean of its divisors is an integer number (1474419314).

Almost surely, 2^4423257939 is an apocalyptic number.

4423257939 is a deficient number, since it is larger than the sum of its proper divisors (1474419317).

4423257939 is a wasteful number, since it uses less digits than its factorization.

4423257939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474419316.

The product of its digits is 1632960, while the sum is 48.

The square root of 4423257939 is about 66507.5780569402. The cubic root of 4423257939 is about 1641.5246998171.

The spelling of 4423257939 in words is "four billion, four hundred twenty-three million, two hundred fifty-seven thousand, nine hundred thirty-nine".