80128042 has 8 divisors (see below), whose sum is σ = 120236832. Its totient is φ = 40049100.

The previous prime is 80128033. The next prime is 80128043. The reversal of 80128042 is 24082108.

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

It is a super-2 number, since 2×80128042² = 12841006229507528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80127998 and 80128016.

It is not an unprimeable number, because it can be changed into a prime (80128043) 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 3 ways as a sum of consecutive naturals, for example, 1317 + ... + 12727.

It is an arithmetic number, because the mean of its divisors is an integer number (15029604).

Almost surely, 2^80128042 is an apocalyptic number.

80128042 is a deficient number, since it is larger than the sum of its proper divisors (40108790).

80128042 is a wasteful number, since it uses less digits than its factorization.

80128042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14924.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 80128042 is about 8951.4268136426. The cubic root of 80128042 is about 431.1166972436.

The spelling of 80128042 in words is "eighty million, one hundred twenty-eight thousand, forty-two".