169000449 has 12 divisors (see below), whose sum is σ = 230703696. Its totient is φ = 110043192.

The previous prime is 169000399. The next prime is 169000463. The reversal of 169000449 is 944000961.

It is not a de Polignac number, because 169000449 - 2⁹ = 168999937 is a prime.

It is a super-2 number, since 2×169000449² = 57122303524403202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169000549) 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 11 ways as a sum of consecutive naturals, for example, 9687 + ... + 20780.

It is an arithmetic number, because the mean of its divisors is an integer number (19225308).

Almost surely, 2^169000449 is an apocalyptic number.

It is an amenable number.

169000449 is a deficient number, since it is larger than the sum of its proper divisors (61703247).

169000449 is an equidigital number, since it uses as much as digits as its factorization.

169000449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30556 (or 30513 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 169000449 is about 13000.0172692193. The cubic root of 169000449 is about 552.8779709966.

The spelling of 169000449 in words is "one hundred sixty-nine million, four hundred forty-nine", and thus it is an aban number.