80365842 has 18 divisors (see below), whose sum is σ = 174208437. Its totient is φ = 26775936.

The previous prime is 80365799. The next prime is 80365867. The reversal of 80365842 is 24856308.

It can be written as a sum of positive squares in 2 ways, for example, as 42653961 + 37711881 = 6531^2 + 6141^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6339.

It is a junction number, because it is equal to n+sod(n) for n = 80365797 and 80365806.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36978 + ... + 39090.

Almost surely, 2^80365842 is an apocalyptic number.

80365842 is an abundant number, since it is smaller than the sum of its proper divisors (93842595).

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

80365842 is an equidigital number, since it uses as much as digits as its factorization.

80365842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 80365842 is about 8964.6997718830. The cubic root of 80365842 is about 431.5427582391.

The spelling of 80365842 in words is "eighty million, three hundred sixty-five thousand, eight hundred forty-two".