4437981423 has 12 divisors (see below), whose sum is σ = 6412352128. Its totient is φ = 2957761440.

The previous prime is 4437981419. The next prime is 4437981437. The reversal of 4437981423 is 3241897344.

It is not a de Polignac number, because 4437981423 - 2² = 4437981419 is a prime.

It is a super-2 number, since 2×4437981423² = 39391358221786209858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4437981403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42190 + ... + 103227.

Almost surely, 2^4437981423 is an apocalyptic number.

4437981423 is a deficient number, since it is larger than the sum of its proper divisors (1974370705).

4437981423 is a wasteful number, since it uses less digits than its factorization.

4437981423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148814 (or 148811 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 4437981423 is about 66618.1763710175. The cubic root of 4437981423 is about 1643.3440371912.

The spelling of 4437981423 in words is "four billion, four hundred thirty-seven million, nine hundred eighty-one thousand, four hundred twenty-three".