1066449 has 4 divisors (see below), whose sum is σ = 1421936. Its totient is φ = 710964.

The previous prime is 1066447. The next prime is 1066511. The reversal of 1066449 is 9446601.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9446601 = 3 ⋅3148867.

It is not a de Polignac number, because 1066449 - 2¹ = 1066447 is a prime.

It is a super-2 number, since 2×1066449² = 2274626939202, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1066447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177739 + ... + 177744.

It is an arithmetic number, because the mean of its divisors is an integer number (355484).

2^1066449 is an apocalyptic number.

It is an amenable number.

1066449 is a deficient number, since it is larger than the sum of its proper divisors (355487).

1066449 is an equidigital number, since it uses as much as digits as its factorization.

1066449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355486.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1066449 is about 1032.6901761903. The cubic root of 1066449 is about 102.1676405122.

It can be divided in two parts, 106 and 6449, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 1066449 in words is "one million, sixty-six thousand, four hundred forty-nine".