2381993455 has 16 divisors (see below), whose sum is σ = 2886347520. Its totient is φ = 1887049728.

The previous prime is 2381993443. The next prime is 2381993483. The reversal of 2381993455 is 5543991832.

It is a cyclic number.

It is not a de Polignac number, because 2381993455 - 2²¹ = 2379896303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2381993399 and 2381993408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209661 + ... + 220729.

It is an arithmetic number, because the mean of its divisors is an integer number (180396720).

Almost surely, 2^2381993455 is an apocalyptic number.

2381993455 is a deficient number, since it is larger than the sum of its proper divisors (504354065).

2381993455 is a wasteful number, since it uses less digits than its factorization.

2381993455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11490.

The product of its digits is 1166400, while the sum is 49.

The square root of 2381993455 is about 48805.6703160606. The cubic root of 2381993455 is about 1335.5091092694.

The spelling of 2381993455 in words is "two billion, three hundred eighty-one million, nine hundred ninety-three thousand, four hundred fifty-five".