3891466384 has 40 divisors (see below), whose sum is σ = 8399696760. Its totient is φ = 1734125568.

The previous prime is 3891466357. The next prime is 3891466409. The reversal of 3891466384 is 4836641983.

It can be written as a sum of positive squares in 4 ways, for example, as 7683984 + 3883782400 = 2772^2 + 62320^2 .

It is a super-3 number, since 3×3891466384³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316537 + ... + 328600.

It is an arithmetic number, because the mean of its divisors is an integer number (209992419).

Almost surely, 2^3891466384 is an apocalyptic number.

It is an amenable number.

3891466384 is an abundant number, since it is smaller than the sum of its proper divisors (4508230376).

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

3891466384 is a wasteful number, since it uses less digits than its factorization.

3891466384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645187 (or 645181 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 3891466384 is about 62381.6189594339. The cubic root of 3891466384 is about 1572.9120071829.

The spelling of 3891466384 in words is "three billion, eight hundred ninety-one million, four hundred sixty-six thousand, three hundred eighty-four".