18527072 has 12 divisors (see below), whose sum is σ = 36475236. Its totient is φ = 9263520.

The previous prime is 18527053. The next prime is 18527081. The reversal of 18527072 is 27072581.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 578971 = 18527072 / (1 + 8 + 5 + 2 + 7 + 0 + 7 + 2).

It is an alternating number because its digits alternate between odd and even.

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 as a sum of consecutive naturals, namely, 289454 + ... + 289517.

It is an arithmetic number, because the mean of its divisors is an integer number (3039603).

Almost surely, 2^18527072 is an apocalyptic number.

It is an amenable number.

18527072 is a deficient number, since it is larger than the sum of its proper divisors (17948164).

18527072 is an equidigital number, since it uses as much as digits as its factorization.

18527072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578981 (or 578973 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 18527072 is about 4304.3085391268. The cubic root of 18527072 is about 264.6075691414.

The spelling of 18527072 in words is "eighteen million, five hundred twenty-seven thousand, seventy-two".