2381279 has 4 divisors (see below), whose sum is σ = 2385984. Its totient is φ = 2376576.

The previous prime is 2381273. The next prime is 2381287. The reversal of 2381279 is 9721832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2381279 - 2⁴ = 2381263 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381273) 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 3 ways as a sum of consecutive naturals, for example, 1487 + ... + 2640.

It is an arithmetic number, because the mean of its divisors is an integer number (596496).

2^2381279 is an apocalyptic number.

2381279 is a deficient number, since it is larger than the sum of its proper divisors (4705).

2381279 is an equidigital number, since it uses as much as digits as its factorization.

2381279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704.

The product of its digits is 6048, while the sum is 32.

The square root of 2381279 is about 1543.1393326592. The cubic root of 2381279 is about 133.5375571739.

The spelling of 2381279 in words is "two million, three hundred eighty-one thousand, two hundred seventy-nine".