18072033 has 12 divisors (see below), whose sum is σ = 28030320. Its totient is φ = 10326792.

The previous prime is 18072029. The next prime is 18072049. The reversal of 18072033 is 33027081.

It is not a de Polignac number, because 18072033 - 2² = 18072029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18071994 and 18072012.

It is not an unprimeable number, because it can be changed into a prime (18072023) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 61323 + ... + 61616.

It is an arithmetic number, because the mean of its divisors is an integer number (2335860).

Almost surely, 2^18072033 is an apocalyptic number.

It is an amenable number.

18072033 is a deficient number, since it is larger than the sum of its proper divisors (9958287).

18072033 is a wasteful number, since it uses less digits than its factorization.

18072033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122956 (or 122949 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 18072033 is about 4251.1213814710. The cubic root of 18072033 is about 262.4232664605.

The spelling of 18072033 in words is "eighteen million, seventy-two thousand, thirty-three".