80723042 has 4 divisors (see below), whose sum is σ = 121084566. Its totient is φ = 40361520.

The previous prime is 80723029. The next prime is 80723051. The reversal of 80723042 is 24032708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51681721 + 29041321 = 7189^2 + 5389^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20180759 + ... + 20180762.

Almost surely, 2^80723042 is an apocalyptic number.

80723042 is a deficient number, since it is larger than the sum of its proper divisors (40361524).

80723042 is a wasteful number, since it uses less digits than its factorization.

80723042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40361523.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 80723042 is about 8984.6002693498. The cubic root of 80723042 is about 432.1811690109.

The spelling of 80723042 in words is "eighty million, seven hundred twenty-three thousand, forty-two".