3944139325 has 48 divisors (see below), whose sum is σ = 5654638080. Its totient is φ = 2673216000.

The previous prime is 3944139313. The next prime is 3944139379. The reversal of 3944139325 is 5239314493.

It is not a de Polignac number, because 3944139325 - 2⁵ = 3944139293 is a prime.

It is a super-2 number, since 2×3944139325² = 31112470030022911250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7570065 + ... + 7570585.

It is an arithmetic number, because the mean of its divisors is an integer number (117804960).

Almost surely, 2^3944139325 is an apocalyptic number.

3944139325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3944139325 is a deficient number, since it is larger than the sum of its proper divisors (1710498755).

3944139325 is a wasteful number, since it uses less digits than its factorization.

3944139325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 953 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The square root of 3944139325 is about 62802.3831156111. The cubic root of 3944139325 is about 1579.9769431288.

The spelling of 3944139325 in words is "three billion, nine hundred forty-four million, one hundred thirty-nine thousand, three hundred twenty-five".