9072018 has 12 divisors (see below), whose sum is σ = 19656078. Its totient is φ = 3024000.

The previous prime is 9071989. The next prime is 9072031. The reversal of 9072018 is 8102709.

It can be written as a sum of positive squares in only one way, i.e., 8838729 + 233289 = 2973^2 + 483^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9071982 and 9072000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251983 + ... + 252018.

Almost surely, 2^9072018 is an apocalyptic number.

9072018 is an abundant number, since it is smaller than the sum of its proper divisors (10584060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9072018 is a wasteful number, since it uses less digits than its factorization.

9072018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504009 (or 504006 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 9072018 is about 3011.9790835927. The cubic root of 9072018 is about 208.5617366307.

The spelling of 9072018 in words is "nine million, seventy-two thousand, eighteen".