4381998969 has 4 divisors (see below), whose sum is σ = 5842665296. Its totient is φ = 2921332644.

The previous prime is 4381998967. The next prime is 4381998997. The reversal of 4381998969 is 9698991834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4381998969 - 2¹ = 4381998967 is a prime.

It is a super-2 number, since 2×4381998969² = 38403829928634125922, 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 (4381998967) 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, 730333159 + ... + 730333164.

It is an arithmetic number, because the mean of its divisors is an integer number (1460666324).

Almost surely, 2^4381998969 is an apocalyptic number.

It is an amenable number.

4381998969 is a deficient number, since it is larger than the sum of its proper divisors (1460666327).

4381998969 is a wasteful number, since it uses less digits than its factorization.

4381998969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460666326.

The product of its digits is 30233088, while the sum is 66.

The square root of 4381998969 is about 66196.6688663410. The cubic root of 4381998969 is about 1636.4048463003.

The spelling of 4381998969 in words is "four billion, three hundred eighty-one million, nine hundred ninety-eight thousand, nine hundred sixty-nine".