80243444 has 12 divisors (see below), whose sum is σ = 141874404. Its totient is φ = 39707904.

The previous prime is 80243413. The next prime is 80243459. The reversal of 80243444 is 44434208.

It can be written as a sum of positive squares in 2 ways, for example, as 50410000 + 29833444 = 7100^2 + 5462^2 .

It is a super-2 number, since 2×80243444² = 12878020609962272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 103019 + ... + 103794.

It is an arithmetic number, because the mean of its divisors is an integer number (11822867).

Almost surely, 2^80243444 is an apocalyptic number.

It is an amenable number.

80243444 is a deficient number, since it is larger than the sum of its proper divisors (61630960).

80243444 is a wasteful number, since it uses less digits than its factorization.

80243444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206914 (or 206912 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 80243444 is about 8957.8705058736. The cubic root of 80243444 is about 431.3235655778.

The spelling of 80243444 in words is "eighty million, two hundred forty-three thousand, four hundred forty-four".