3924872281 has 24 divisors (see below), whose sum is σ = 4399980480. Its totient is φ = 3497413920.

The previous prime is 3924872251. The next prime is 3924872291. The reversal of 3924872281 is 1822784293.

It is not a de Polignac number, because 3924872281 - 2¹¹ = 3924870233 is a prime.

It is a super-2 number, since 2×3924872281² = 30809244844324285922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3924872201) 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 23 ways as a sum of consecutive naturals, for example, 3590371 + ... + 3591463.

It is an arithmetic number, because the mean of its divisors is an integer number (183332520).

Almost surely, 2^3924872281 is an apocalyptic number.

It is an amenable number.

3924872281 is a deficient number, since it is larger than the sum of its proper divisors (475108199).

3924872281 is a wasteful number, since it uses less digits than its factorization.

3924872281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677 (or 1666 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 3924872281 is about 62648.8011138282. The cubic root of 3924872281 is about 1577.4000236016.

The spelling of 3924872281 in words is "three billion, nine hundred twenty-four million, eight hundred seventy-two thousand, two hundred eighty-one".