3891446000 has 160 divisors (see below), whose sum is σ = 10244427648. Its totient is φ = 1421107200.

The previous prime is 3891445991. The next prime is 3891446003. The reversal of 3891446000 is 6441983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3891446003) 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 31 ways as a sum of consecutive naturals, for example, 2521229 + ... + 2522771.

Almost surely, 2^3891446000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3891446000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5122213824).

3891446000 is an abundant number, since it is smaller than the sum of its proper divisors (6352981648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3891446000 is a wasteful number, since it uses less digits than its factorization.

3891446000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 3891446000 is about 62381.4555777596. The cubic root of 3891446000 is about 1572.9092608065.

Adding to 3891446000 its reverse (6441983), we get a palindrome (3897887983).

The spelling of 3891446000 in words is "three billion, eight hundred ninety-one million, four hundred forty-six thousand".