18058072 has 16 divisors (see below), whose sum is σ = 34774560. Its totient is φ = 8784864.

The previous prime is 18058021. The next prime is 18058091. The reversal of 18058072 is 27085081.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 30208 + ... + 30799.

It is an arithmetic number, because the mean of its divisors is an integer number (2173410).

Almost surely, 2^18058072 is an apocalyptic number.

It is an amenable number.

18058072 is a deficient number, since it is larger than the sum of its proper divisors (16716488).

18058072 is a wasteful number, since it uses less digits than its factorization.

18058072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61050 (or 61046 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 18058072 is about 4249.4790268926. The cubic root of 18058072 is about 262.3556733448.

The spelling of 18058072 in words is "eighteen million, fifty-eight thousand, seventy-two".