80344449 has 24 divisors (see below), whose sum is σ = 118820520. Its totient is φ = 52296192.

The previous prime is 80344441. The next prime is 80344477. The reversal of 80344449 is 94444308.

It can be written as a sum of positive squares in 4 ways, for example, as 1703025 + 78641424 = 1305^2 + 8868^2 .

It is not a de Polignac number, because 80344449 - 2³ = 80344441 is a prime.

It is a super-2 number, since 2×80344449² = 12910460970227202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80344441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185337 + ... + 185769.

It is an arithmetic number, because the mean of its divisors is an integer number (4950855).

Almost surely, 2^80344449 is an apocalyptic number.

It is an amenable number.

80344449 is a deficient number, since it is larger than the sum of its proper divisors (38476071).

80344449 is a wasteful number, since it uses less digits than its factorization.

80344449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 80344449 is about 8963.5065125206. The cubic root of 80344449 is about 431.5044633065.

The spelling of 80344449 in words is "eighty million, three hundred forty-four thousand, four hundred forty-nine".