4422381 has 4 divisors (see below), whose sum is σ = 5896512. Its totient is φ = 2948252.

The previous prime is 4422361. The next prime is 4422391. The reversal of 4422381 is 1832244.

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 4422381 - 2⁹ = 4421869 is a prime.

It is a super-2 number, since 2×4422381² = 39114907418322, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

4422381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4422311) 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, 737061 + ... + 737066.

It is an arithmetic number, because the mean of its divisors is an integer number (1474128).

Almost surely, 2^4422381 is an apocalyptic number.

It is an amenable number.

4422381 is a deficient number, since it is larger than the sum of its proper divisors (1474131).

4422381 is a wasteful number, since it uses less digits than its factorization.

4422381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474130.

The product of its digits is 1536, while the sum is 24.

The square root of 4422381 is about 2102.9457910274. The cubic root of 4422381 is about 164.1416211746.

The spelling of 4422381 in words is "four million, four hundred twenty-two thousand, three hundred eighty-one".