4420381 has 4 divisors (see below), whose sum is σ = 5051872. Its totient is φ = 3788892.

The previous prime is 4420379. The next prime is 4420417. The reversal of 4420381 is 1830244.

4420381 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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 4420381 - 2¹ = 4420379 is a prime.

It is a super-2 number, since 2×4420381² = 39079536370322, which contains 22 as substring.

4420381 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420081) 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, 315735 + ... + 315748.

It is an arithmetic number, because the mean of its divisors is an integer number (1262968).

Almost surely, 2^4420381 is an apocalyptic number.

It is an amenable number.

4420381 is a deficient number, since it is larger than the sum of its proper divisors (631491).

4420381 is an equidigital number, since it uses as much as digits as its factorization.

4420381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631490.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4420381 is about 2102.4702138199. The cubic root of 4420381 is about 164.1168733639.

The spelling of 4420381 in words is "four million, four hundred twenty thousand, three hundred eighty-one".