4368381 has 4 divisors (see below), whose sum is σ = 5824512. Its totient is φ = 2912252.

The previous prime is 4368379. The next prime is 4368389. The reversal of 4368381 is 1838634.

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 4368381 - 2¹ = 4368379 is a prime.

It is a super-2 number, since 2×4368381² = 38165505122322, which contains 22 as substring.

It is a D-number.

4368381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4368389) 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, 728061 + ... + 728066.

It is an arithmetic number, because the mean of its divisors is an integer number (1456128).

Almost surely, 2^4368381 is an apocalyptic number.

It is an amenable number.

4368381 is a deficient number, since it is larger than the sum of its proper divisors (1456131).

4368381 is a wasteful number, since it uses less digits than its factorization.

4368381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456130.

The product of its digits is 13824, while the sum is 33.

The square root of 4368381 is about 2090.0672237993. The cubic root of 4368381 is about 163.4707931632.

The spelling of 4368381 in words is "four million, three hundred sixty-eight thousand, three hundred eighty-one".