2378239 has 4 divisors (see below), whose sum is σ = 2382640. Its totient is φ = 2373840.

The previous prime is 2378237. The next prime is 2378263. The reversal of 2378239 is 9328732.

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 2378239 - 2¹ = 2378237 is a prime.

It is a super-2 number, since 2×2378239² = 11312041482242, which contains 22 as substring.

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 (2378237) 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, 1254 + ... + 2515.

It is an arithmetic number, because the mean of its divisors is an integer number (595660).

2^2378239 is an apocalyptic number.

2378239 is a deficient number, since it is larger than the sum of its proper divisors (4401).

2378239 is an equidigital number, since it uses as much as digits as its factorization.

2378239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400.

The product of its digits is 18144, while the sum is 34.

The square root of 2378239 is about 1542.1540130610. The cubic root of 2378239 is about 133.4807071860.

The spelling of 2378239 in words is "two million, three hundred seventy-eight thousand, two hundred thirty-nine".