1449921 has 16 divisors (see below), whose sum is σ = 2151360. Its totient is φ = 861120.

The previous prime is 1449911. The next prime is 1449937. The reversal of 1449921 is 1299441.

It is not a de Polignac number, because 1449921 - 2¹³ = 1441729 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1449911) 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, 1335 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (134460).

2^1449921 is an apocalyptic number.

1449921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1449921 is a deficient number, since it is larger than the sum of its proper divisors (701439).

1449921 is a wasteful number, since it uses less digits than its factorization.

1449921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896.

The product of its digits is 2592, while the sum is 30.

The square root of 1449921 is about 1204.1266544679. The cubic root of 1449921 is about 113.1830640131.

The spelling of 1449921 in words is "one million, four hundred forty-nine thousand, nine hundred twenty-one".