4426381 has 4 divisors (see below), whose sum is σ = 4467100. Its totient is φ = 4385664.

The previous prime is 4426379. The next prime is 4426417. The reversal of 4426381 is 1836244.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1974025 + 2452356 = 1405^2 + 1566^2 .

It is a cyclic number.

It is not a de Polignac number, because 4426381 - 2¹ = 4426379 is a prime.

It is a super-2 number, since 2×4426381² = 39185697514322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4426361) 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, 20196 + ... + 20413.

It is an arithmetic number, because the mean of its divisors is an integer number (1116775).

Almost surely, 2^4426381 is an apocalyptic number.

It is an amenable number.

4426381 is a deficient number, since it is larger than the sum of its proper divisors (40719).

4426381 is a wasteful number, since it uses less digits than its factorization.

4426381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40718.

The product of its digits is 4608, while the sum is 28.

The square root of 4426381 is about 2103.8966229356. The cubic root of 4426381 is about 164.1910944207.

It can be divided in two parts, 44263 and 81, that added together give a palindrome (44344).

The spelling of 4426381 in words is "four million, four hundred twenty-six thousand, three hundred eighty-one".