80569842 has 16 divisors (see below), whose sum is σ = 169620960. Its totient is φ = 25443072.

The previous prime is 80569807. The next prime is 80569873. The reversal of 80569842 is 24896508.

It is a super-3 number, since 3×80569842³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80569794 and 80569803.

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, 353263 + ... + 353490.

It is an arithmetic number, because the mean of its divisors is an integer number (10601310).

Almost surely, 2^80569842 is an apocalyptic number.

80569842 is an abundant number, since it is smaller than the sum of its proper divisors (89051118).

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

80569842 is a wasteful number, since it uses less digits than its factorization.

80569842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706777.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 80569842 is about 8976.0705211133. The cubic root of 80569842 is about 431.9075912597.

The spelling of 80569842 in words is "eighty million, five hundred sixty-nine thousand, eight hundred forty-two".