2338781 has 4 divisors (see below), whose sum is σ = 2349312. Its totient is φ = 2328252.

The previous prime is 2338757. The next prime is 2338783. The reversal of 2338781 is 1878332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2338781 - 2⁶ = 2338717 is a prime.

It is a super-2 number, since 2×2338781² = 10939793131922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2338783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4925 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (587328).

2^2338781 is an apocalyptic number.

It is an amenable number.

2338781 is a deficient number, since it is larger than the sum of its proper divisors (10531).

2338781 is a wasteful number, since it uses less digits than its factorization.

2338781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10530.

The product of its digits is 8064, while the sum is 32.

The square root of 2338781 is about 1529.3073595586. The cubic root of 2338781 is about 132.7383818329.

The spelling of 2338781 in words is "two million, three hundred thirty-eight thousand, seven hundred eighty-one".