1449021 has 8 divisors (see below), whose sum is σ = 2208064. Its totient is φ = 828000.

The previous prime is 1449017. The next prime is 1449061. The reversal of 1449021 is 1209441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1449021 - 2² = 1449017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 69001 = 1449021 / (1 + 4 + 4 + 9 + 0 + 2 + 1).

It is a Duffinian number.

1449021 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449001) 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 7 ways as a sum of consecutive naturals, for example, 34480 + ... + 34521.

It is an arithmetic number, because the mean of its divisors is an integer number (276008).

2^1449021 is an apocalyptic number.

It is an amenable number.

1449021 is a deficient number, since it is larger than the sum of its proper divisors (759043).

1449021 is an equidigital number, since it uses as much as digits as its factorization.

1449021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69011.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1449021 is about 1203.7528816165. The cubic root of 1449021 is about 113.1596407044.

The spelling of 1449021 in words is "one million, four hundred forty-nine thousand, twenty-one".