3932945281 has 4 divisors (see below), whose sum is σ = 3941021632. Its totient is φ = 3924868932.

The previous prime is 3932945279. The next prime is 3932945297. The reversal of 3932945281 is 1825492393.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1825492393 = 19 ⋅96078547.

It is a cyclic number.

It is not a de Polignac number, because 3932945281 - 2¹ = 3932945279 is a prime.

It is a super-2 number, since 2×3932945281² = 30936117166680337922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3932925281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4037445 + ... + 4038418.

It is an arithmetic number, because the mean of its divisors is an integer number (985255408).

Almost surely, 2^3932945281 is an apocalyptic number.

It is an amenable number.

3932945281 is a deficient number, since it is larger than the sum of its proper divisors (8076351).

3932945281 is an equidigital number, since it uses as much as digits as its factorization.

3932945281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8076350.

The product of its digits is 466560, while the sum is 46.

The square root of 3932945281 is about 62713.1986187916. The cubic root of 3932945281 is about 1578.4807916218.

The spelling of 3932945281 in words is "three billion, nine hundred thirty-two million, nine hundred forty-five thousand, two hundred eighty-one".