4089191381 has 16 divisors (see below), whose sum is σ = 4697894400. Its totient is φ = 3520162800.

The previous prime is 4089191347. The next prime is 4089191383. The reversal of 4089191381 is 1831919804.

It is not a de Polignac number, because 4089191381 - 2³⁰ = 3015449557 is a prime.

It is a super-2 number, since 2×4089191381² = 33442972300889374322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089191383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743600 + ... + 749078.

It is an arithmetic number, because the mean of its divisors is an integer number (293618400).

Almost surely, 2^4089191381 is an apocalyptic number.

It is an amenable number.

4089191381 is a deficient number, since it is larger than the sum of its proper divisors (608703019).

4089191381 is a wasteful number, since it uses less digits than its factorization.

4089191381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9080.

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 4089191381 is about 63946.7855407916. The cubic root of 4089191381 is about 1599.1129693940.

The spelling of 4089191381 in words is "four billion, eighty-nine million, one hundred ninety-one thousand, three hundred eighty-one".