2381428491 has 16 divisors (see below), whose sum is σ = 3421311264. Its totient is φ = 1464712704.

The previous prime is 2381428453. The next prime is 2381428529. The reversal of 2381428491 is 1948241832.

It is an interprime number because it is at equal distance from previous prime (2381428453) and next prime (2381428529).

It is not a de Polignac number, because 2381428491 - 2⁷ = 2381428363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2381428421) 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, 62595 + ... + 93171.

It is an arithmetic number, because the mean of its divisors is an integer number (213831954).

Almost surely, 2^2381428491 is an apocalyptic number.

2381428491 is a deficient number, since it is larger than the sum of its proper divisors (1039882773).

2381428491 is a wasteful number, since it uses less digits than its factorization.

2381428491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32590.

The product of its digits is 110592, while the sum is 42.

The square root of 2381428491 is about 48799.8820797756. The cubic root of 2381428491 is about 1335.4035150486.

The spelling of 2381428491 in words is "two billion, three hundred eighty-one million, four hundred twenty-eight thousand, four hundred ninety-one".