1648449 has 12 divisors (see below), whose sum is σ = 2597712. Its totient is φ = 999000.

The previous prime is 1648441. The next prime is 1648453. The reversal of 1648449 is 9448461.

It is a happy number.

1648449 is a `hidden beast` number, since 1 + 648 + 4 + 4 + 9 = 666.

It is not a de Polignac number, because 1648449 - 2³ = 1648441 is a prime.

1648449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1648441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8227 + ... + 8424.

It is an arithmetic number, because the mean of its divisors is an integer number (216476).

2^1648449 is an apocalyptic number.

It is an amenable number.

1648449 is a deficient number, since it is larger than the sum of its proper divisors (949263).

1648449 is a wasteful number, since it uses less digits than its factorization.

1648449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16668 (or 16665 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1648449 is about 1283.9193899930. The cubic root of 1648449 is about 118.1295379125.

The spelling of 1648449 in words is "one million, six hundred forty-eight thousand, four hundred forty-nine".