80449772 has 24 divisors (see below), whose sum is σ = 151939200. Its totient is φ = 37051776.

The previous prime is 80449753. The next prime is 80449777. The reversal of 80449772 is 27794408.

It is not an unprimeable number, because it can be changed into a prime (80449777) 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 7 ways as a sum of consecutive naturals, for example, 28229 + ... + 30947.

It is an arithmetic number, because the mean of its divisors is an integer number (6330800).

Almost surely, 2^80449772 is an apocalyptic number.

It is an amenable number.

80449772 is a deficient number, since it is larger than the sum of its proper divisors (71489428).

80449772 is a wasteful number, since it uses less digits than its factorization.

80449772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305 (or 3303 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 80449772 is about 8969.3796886964. The cubic root of 80449772 is about 431.6929330793.

The spelling of 80449772 in words is "eighty million, four hundred forty-nine thousand, seven hundred seventy-two".