4338992681 has 8 divisors (see below), whose sum is σ = 4373541504. Its totient is φ = 4304540880.

The previous prime is 4338992657. The next prime is 4338992689. The reversal of 4338992681 is 1862998334.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4338992681 is a prime.

It is a super-2 number, since 2×4338992681² = 37653714971543135522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4338992689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66896 + ... + 114686.

It is an arithmetic number, because the mean of its divisors is an integer number (546692688).

Almost surely, 2^4338992681 is an apocalyptic number.

It is an amenable number.

4338992681 is a deficient number, since it is larger than the sum of its proper divisors (34548823).

4338992681 is a wasteful number, since it uses less digits than its factorization.

4338992681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48511.

The product of its digits is 2239488, while the sum is 53.

The square root of 4338992681 is about 65871.0306659916. The cubic root of 4338992681 is about 1631.0338431140.

The spelling of 4338992681 in words is "four billion, three hundred thirty-eight million, nine hundred ninety-two thousand, six hundred eighty-one".