80395728 has 40 divisors (see below), whose sum is σ = 237359808. Its totient is φ = 22970112.

The previous prime is 80395727. The next prime is 80395729. The reversal of 80395728 is 82759308.

It is an interprime number because it is at equal distance from previous prime (80395727) and next prime (80395729).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 80395728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80395727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119301 + ... + 119972.

Almost surely, 2^80395728 is an apocalyptic number.

It is an amenable number.

80395728 is an abundant number, since it is smaller than the sum of its proper divisors (156964080).

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

80395728 is a wasteful number, since it uses less digits than its factorization.

80395728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239291 (or 239285 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 80395728 is about 8966.3664881601. The cubic root of 80395728 is about 431.5962448456.

The spelling of 80395728 in words is "eighty million, three hundred ninety-five thousand, seven hundred twenty-eight".