4381449 has 4 divisors (see below), whose sum is σ = 5841936. Its totient is φ = 2920964.

The previous prime is 4381441. The next prime is 4381453. The reversal of 4381449 is 9441834.

It is a happy number.

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 4381449 - 2³ = 4381441 is a prime.

It is a super-3 number, since 3×4381449³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4381441) 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, 730239 + ... + 730244.

It is an arithmetic number, because the mean of its divisors is an integer number (1460484).

Almost surely, 2^4381449 is an apocalyptic number.

It is an amenable number.

4381449 is a deficient number, since it is larger than the sum of its proper divisors (1460487).

4381449 is a wasteful number, since it uses less digits than its factorization.

4381449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460486.

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

The square root of 4381449 is about 2093.1911045100. The cubic root of 4381449 is about 163.6336383665.

The spelling of 4381449 in words is "four million, three hundred eighty-one thousand, four hundred forty-nine".