2389994456 has 16 divisors (see below), whose sum is σ = 4482575640. Its totient is φ = 1194640960.

The previous prime is 2389994449. The next prime is 2389994459. The reversal of 2389994456 is 6544999832.

It is a junction number, because it is equal to n+sod(n) for n = 2389994395 and 2389994404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389994459) 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 3 ways as a sum of consecutive naturals, for example, 14861 + ... + 70716.

Almost surely, 2^2389994456 is an apocalyptic number.

It is an amenable number.

2389994456 is a deficient number, since it is larger than the sum of its proper divisors (2092581184).

2389994456 is a wasteful number, since it uses less digits than its factorization.

2389994456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89074 (or 89070 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 59.

The square root of 2389994456 is about 48887.5695448240. The cubic root of 2389994456 is about 1337.0027417067.

The spelling of 2389994456 in words is "two billion, three hundred eighty-nine million, nine hundred ninety-four thousand, four hundred fifty-six".