80856342 has 48 divisors (see below), whose sum is σ = 202775040. Its totient is φ = 22806576.

The previous prime is 80856331. The next prime is 80856353. The reversal of 80856342 is 24365808.

It is an interprime number because it is at equal distance from previous prime (80856331) and next prime (80856353).

It is a junction number, because it is equal to n+sod(n) for n = 80856297 and 80856306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5893 + ... + 14015.

It is an arithmetic number, because the mean of its divisors is an integer number (4224480).

Almost surely, 2^80856342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80856342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101387520).

80856342 is an abundant number, since it is smaller than the sum of its proper divisors (121918698).

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

80856342 is a wasteful number, since it uses less digits than its factorization.

80856342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8217 (or 8214 counting only the distinct ones).

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

The square root of 80856342 is about 8992.0154581718. The cubic root of 80856342 is about 432.4189287494.

The spelling of 80856342 in words is "eighty million, eight hundred fifty-six thousand, three hundred forty-two".