18060722 has 4 divisors (see below), whose sum is σ = 27091086. Its totient is φ = 9030360.

The previous prime is 18060701. The next prime is 18060733. The reversal of 18060722 is 22706081.

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., 17230801 + 829921 = 4151^2 + 911^2 .

It is a super-2 number, since 2×18060722² = 652379358322568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18060691 and 18060700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4515179 + ... + 4515182.

Almost surely, 2^18060722 is an apocalyptic number.

18060722 is a deficient number, since it is larger than the sum of its proper divisors (9030364).

18060722 is an equidigital number, since it uses as much as digits as its factorization.

18060722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9030363.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18060722 is about 4249.7908183815. The cubic root of 18060722 is about 262.3685061752.

The spelling of 18060722 in words is "eighteen million, sixty thousand, seven hundred twenty-two".