80855442 has 32 divisors (see below), whose sum is σ = 187493760. Its totient is φ = 25779600.

The previous prime is 80855441. The next prime is 80855447. The reversal of 80855442 is 24455808.

It is a junction number, because it is equal to n+sod(n) for n = 80855397 and 80855406.

It is not an unprimeable number, because it can be changed into a prime (80855441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31309 + ... + 33792.

It is an arithmetic number, because the mean of its divisors is an integer number (5859180).

Almost surely, 2^80855442 is an apocalyptic number.

80855442 is an abundant number, since it is smaller than the sum of its proper divisors (106638318).

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

80855442 is a wasteful number, since it uses less digits than its factorization.

80855442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65135 (or 65129 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 80855442 is about 8991.9654136346. The cubic root of 80855442 is about 432.4173243464.

The spelling of 80855442 in words is "eighty million, eight hundred fifty-five thousand, four hundred forty-two".