3951889344 has 448 divisors, whose sum is σ = 13518489600. Its totient is φ = 1121734656.

The previous prime is 3951889313. The next prime is 3951889369. The reversal of 3951889344 is 4439881593.

3951889344 is a `hidden beast` number, since 3 + 9 + 518 + 89 + 3 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20060254 + ... + 20060450.

It is an arithmetic number, because the mean of its divisors is an integer number (30175200).

Almost surely, 2^3951889344 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 3951889344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6759244800).

3951889344 is an abundant number, since it is smaller than the sum of its proper divisors (9566600256).

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

3951889344 is a wasteful number, since it uses less digits than its factorization.

3951889344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 281 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 3951889344 is about 62864.0544667618. The cubic root of 3951889344 is about 1581.0111222748.

The spelling of 3951889344 in words is "three billion, nine hundred fifty-one million, eight hundred eighty-nine thousand, three hundred forty-four".