1641449 has 8 divisors (see below), whose sum is σ = 1696320. Its totient is φ = 1587600.

The previous prime is 1641407. The next prime is 1641457. The reversal of 1641449 is 9441461.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1641449 - 2¹⁶ = 1575913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1649449) 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, 4142 + ... + 4520.

It is an arithmetic number, because the mean of its divisors is an integer number (212040).

2^1641449 is an apocalyptic number.

It is an amenable number.

1641449 is a deficient number, since it is larger than the sum of its proper divisors (54871).

1641449 is an equidigital number, since it uses as much as digits as its factorization.

1641449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its digits is 3456, while the sum is 29.

The square root of 1641449 is about 1281.1904620313. The cubic root of 1641449 is about 117.9620916245.

The spelling of 1641449 in words is "one million, six hundred forty-one thousand, four hundred forty-nine".