80436768 has 48 divisors (see below), whose sum is σ = 213111360. Its totient is φ = 26562816.

The previous prime is 80436757. The next prime is 80436781. The reversal of 80436768 is 86763408.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6621 + ... + 14307.

It is an arithmetic number, because the mean of its divisors is an integer number (4439820).

Almost surely, 2^80436768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80436768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106555680).

80436768 is an abundant number, since it is smaller than the sum of its proper divisors (132674592).

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

80436768 is a wasteful number, since it uses less digits than its factorization.

80436768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7809 (or 7801 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 80436768 is about 8968.6547486231. The cubic root of 80436768 is about 431.6696720339.

The spelling of 80436768 in words is "eighty million, four hundred thirty-six thousand, seven hundred sixty-eight".