18075572 has 6 divisors (see below), whose sum is σ = 31632258. Its totient is φ = 9037784.

The previous prime is 18075569. The next prime is 18075583. The reversal of 18075572 is 27557081.

It can be written as a sum of positive squares in only one way, i.e., 17673616 + 401956 = 4204^2 + 634^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2259443 + ... + 2259450.

It is an arithmetic number, because the mean of its divisors is an integer number (5272043).

Almost surely, 2^18075572 is an apocalyptic number.

It is an amenable number.

18075572 is a deficient number, since it is larger than the sum of its proper divisors (13556686).

18075572 is a wasteful number, since it uses less digits than its factorization.

18075572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518897 (or 4518895 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 18075572 is about 4251.5376042086. The cubic root of 18075572 is about 262.4403952348.

The spelling of 18075572 in words is "eighteen million, seventy-five thousand, five hundred seventy-two".