80420722 has 4 divisors (see below), whose sum is σ = 120631086. Its totient is φ = 40210360.

The previous prime is 80420701. The next prime is 80420723. The reversal of 80420722 is 22702408.

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., 63536841 + 16883881 = 7971^2 + 4109^2 .

It is not an unprimeable number, because it can be changed into a prime (80420723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105179 + ... + 20105182.

Almost surely, 2^80420722 is an apocalyptic number.

80420722 is a deficient number, since it is larger than the sum of its proper divisors (40210364).

80420722 is a wasteful number, since it uses less digits than its factorization.

80420722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40210363.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 80420722 is about 8967.7601439824. The cubic root of 80420722 is about 431.6409661226.

The spelling of 80420722 in words is "eighty million, four hundred twenty thousand, seven hundred twenty-two".