1449889 has 4 divisors (see below), whose sum is σ = 1657024. Its totient is φ = 1242756.

The previous prime is 1449869. The next prime is 1449893. The reversal of 1449889 is 9889441.

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 1449889 - 2¹³ = 1441697 is a prime.

It is a super-2 number, since 2×1449889² = 4204356224642, which contains 22 as substring.

It is a Duffinian number.

1449889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1449829) 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 3 ways as a sum of consecutive naturals, for example, 103557 + ... + 103570.

It is an arithmetic number, because the mean of its divisors is an integer number (414256).

2^1449889 is an apocalyptic number.

It is an amenable number.

1449889 is a deficient number, since it is larger than the sum of its proper divisors (207135).

1449889 is an equidigital number, since it uses as much as digits as its factorization.

1449889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207134.

The product of its digits is 82944, while the sum is 43.

The square root of 1449889 is about 1204.1133667558. The cubic root of 1449889 is about 113.1822313506.

The spelling of 1449889 in words is "one million, four hundred forty-nine thousand, eight hundred eighty-nine".