2389549916 has 24 divisors (see below), whose sum is σ = 4504997280. Its totient is φ = 1102473792.

The previous prime is 2389549901. The next prime is 2389549919. The reversal of 2389549916 is 6199459832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389549919) 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 7 ways as a sum of consecutive naturals, for example, 178505 + ... + 191423.

It is an arithmetic number, because the mean of its divisors is an integer number (187708220).

Almost surely, 2^2389549916 is an apocalyptic number.

2389549916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2389549916 is a deficient number, since it is larger than the sum of its proper divisors (2115447364).

2389549916 is a wasteful number, since it uses less digits than its factorization.

2389549916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16493 (or 16491 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 56.

The square root of 2389549916 is about 48883.0227788749. The cubic root of 2389549916 is about 1336.9198422045.

The spelling of 2389549916 in words is "two billion, three hundred eighty-nine million, five hundred forty-nine thousand, nine hundred sixteen".