2381449328 has 40 divisors (see below), whose sum is σ = 4670086512. Its totient is φ = 1176311808.

The previous prime is 2381449327. The next prime is 2381449337. The reversal of 2381449328 is 8239441832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381449321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173851 + ... + 1175877.

Almost surely, 2^2381449328 is an apocalyptic number.

It is an amenable number.

2381449328 is a deficient number, since it is larger than the sum of its proper divisors (2288637184).

2381449328 is a wasteful number, since it uses less digits than its factorization.

2381449328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889 (or 2883 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 2381449328 is about 48800.0955736769. The cubic root of 2381449328 is about 1335.4074098709.

The spelling of 2381449328 in words is "two billion, three hundred eighty-one million, four hundred forty-nine thousand, three hundred twenty-eight".