18079285 has 24 divisors (see below), whose sum is σ = 25506360. Its totient is φ = 12265344.

The previous prime is 18079283. The next prime is 18079289. The reversal of 18079285 is 58297081.

It can be written as a sum of positive squares in 4 ways, for example, as 8892324 + 9186961 = 2982^2 + 3031^2 .

It is not a de Polignac number, because 18079285 - 2¹ = 18079283 is a prime.

It is a super-2 number, since 2×18079285² = 653721092222450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18079283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26367 + ... + 27043.

It is an arithmetic number, because the mean of its divisors is an integer number (1062765).

Almost surely, 2^18079285 is an apocalyptic number.

It is an amenable number.

18079285 is a deficient number, since it is larger than the sum of its proper divisors (7427075).

18079285 is a wasteful number, since it uses less digits than its factorization.

18079285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 18079285 is about 4251.9742473350. The cubic root of 18079285 is about 262.4583637666.

It can be divided in two parts, 18079 and 285, that multiplied together give a palindrome (5152515).

The spelling of 18079285 in words is "eighteen million, seventy-nine thousand, two hundred eighty-five".