80987242 has 16 divisors (see below), whose sum is σ = 139332672. Its totient is φ = 34584480.

The previous prime is 80987219. The next prime is 80987267. The reversal of 80987242 is 24278908.

It is a junction number, because it is equal to n+sod(n) for n = 80987195 and 80987204.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6259 + ... + 14182.

It is an arithmetic number, because the mean of its divisors is an integer number (8708292).

Almost surely, 2^80987242 is an apocalyptic number.

80987242 is a deficient number, since it is larger than the sum of its proper divisors (58345430).

80987242 is a wasteful number, since it uses less digits than its factorization.

80987242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20733.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 80987242 is about 8999.2911943108. The cubic root of 80987242 is about 432.6521535785.

The spelling of 80987242 in words is "eighty million, nine hundred eighty-seven thousand, two hundred forty-two".