3925442321 has 4 divisors (see below), whose sum is σ = 3925988592. Its totient is φ = 3924896052.

The previous prime is 3925442281. The next prime is 3925442347. The reversal of 3925442321 is 1232445293.

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 a cyclic number.

It is not a de Polignac number, because 3925442321 - 2¹⁰ = 3925441297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3925432321) 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, 262211 + ... + 276776.

It is an arithmetic number, because the mean of its divisors is an integer number (981497148).

Almost surely, 2^3925442321 is an apocalyptic number.

It is an amenable number.

3925442321 is a deficient number, since it is larger than the sum of its proper divisors (546271).

3925442321 is an equidigital number, since it uses as much as digits as its factorization.

3925442321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546270.

The product of its digits is 51840, while the sum is 35.

The square root of 3925442321 is about 62653.3504371474. The cubic root of 3925442321 is about 1577.4763859660.

The spelling of 3925442321 in words is "three billion, nine hundred twenty-five million, four hundred forty-two thousand, three hundred twenty-one".