4452381 has 16 divisors (see below), whose sum is σ = 6664320. Its totient is φ = 2937600.

The previous prime is 4452379. The next prime is 4452391. The reversal of 4452381 is 1832544.

It is not a de Polignac number, because 4452381 - 2¹ = 4452379 is a prime.

It is a super-2 number, since 2×4452381² = 39647393138322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

4452381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4452391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1981 + ... + 3581.

It is an arithmetic number, because the mean of its divisors is an integer number (416520).

Almost surely, 2^4452381 is an apocalyptic number.

It is an amenable number.

4452381 is a deficient number, since it is larger than the sum of its proper divisors (2211939).

4452381 is a wasteful number, since it uses less digits than its factorization.

4452381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713 (or 1707 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 4452381 is about 2110.0665866271. The cubic root of 4452381 is about 164.5119462381.

It can be divided in two parts, 44 and 52381, that added together give a palindrome (52425).

The spelling of 4452381 in words is "four million, four hundred fifty-two thousand, three hundred eighty-one".