80446728 has 16 divisors (see below), whose sum is σ = 201116880. Its totient is φ = 26815568.

The previous prime is 80446711. The next prime is 80446733. The reversal of 80446728 is 82764408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675950 + ... + 1675997.

It is an arithmetic number, because the mean of its divisors is an integer number (12569805).

Almost surely, 2^80446728 is an apocalyptic number.

It is an amenable number.

80446728 is an abundant number, since it is smaller than the sum of its proper divisors (120670152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80446728 is a wasteful number, since it uses less digits than its factorization.

80446728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351956 (or 3351952 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 80446728 is about 8969.2099986565. The cubic root of 80446728 is about 431.6874883162.

The spelling of 80446728 in words is "eighty million, four hundred forty-six thousand, seven hundred twenty-eight".