80840842 has 8 divisors (see below), whose sum is σ = 121309056. Its totient is φ = 40404492.

The previous prime is 80840833. The next prime is 80840861. The reversal of 80840842 is 24804808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×80840842³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80840798 and 80840807.

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, 48 + ... + 12715.

It is an arithmetic number, because the mean of its divisors is an integer number (15163632).

Almost surely, 2^80840842 is an apocalyptic number.

80840842 is a deficient number, since it is larger than the sum of its proper divisors (40468214).

80840842 is a wasteful number, since it uses less digits than its factorization.

80840842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15932.

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 80840842 is about 8991.1535411203. The cubic root of 80840842 is about 432.3912957006.

The spelling of 80840842 in words is "eighty million, eight hundred forty thousand, eight hundred forty-two".