80380544 has 16 divisors (see below), whose sum is σ = 160133370. Its totient is φ = 40190208.

The previous prime is 80380543. The next prime is 80380549. The reversal of 80380544 is 44508308.

It can be written as a sum of positive squares in only one way, i.e., 52417600 + 27962944 = 7240^2 + 5288^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×80380544² = 12922063707471872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 80380544.

It is not an unprimeable number, because it can be changed into a prime (80380543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313859 + ... + 314114.

Almost surely, 2^80380544 is an apocalyptic number.

It is an amenable number.

80380544 is a deficient number, since it is larger than the sum of its proper divisors (79752826).

80380544 is an equidigital number, since it uses as much as digits as its factorization.

80380544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627987 (or 627975 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 80380544 is about 8965.5197283816. The cubic root of 80380544 is about 431.5690718844.

The spelling of 80380544 in words is "eighty million, three hundred eighty thousand, five hundred forty-four".