80909042 has 8 divisors (see below), whose sum is σ = 121407276. Its totient is φ = 40439952.

The previous prime is 80909041. The next prime is 80909051. The reversal of 80909042 is 24090908.

It can be written as a sum of positive squares in 2 ways, for example, as 79584241 + 1324801 = 8921^2 + 1151^2 .

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

It is not an unprimeable number, because it can be changed into a prime (80909041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048 + ... + 12884.

Almost surely, 2^80909042 is an apocalyptic number.

80909042 is a deficient number, since it is larger than the sum of its proper divisors (40498234).

80909042 is a wasteful number, since it uses less digits than its factorization.

80909042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14572.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 80909042 is about 8994.9453583666. The cubic root of 80909042 is about 432.5128547083.

The spelling of 80909042 in words is "eighty million, nine hundred nine thousand, forty-two".