18062361 has 6 divisors (see below), whose sum is σ = 26090090. Its totient is φ = 12041568.

The previous prime is 18062357. The next prime is 18062423. The reversal of 18062361 is 16326081.

It can be written as a sum of positive squares in only one way, i.e., 9418761 + 8643600 = 3069^2 + 2940^2 .

It is not a de Polignac number, because 18062361 - 2² = 18062357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18062311) 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 5 ways as a sum of consecutive naturals, for example, 1003456 + ... + 1003473.

Almost surely, 2^18062361 is an apocalyptic number.

It is an amenable number.

18062361 is a deficient number, since it is larger than the sum of its proper divisors (8027729).

18062361 is a wasteful number, since it uses less digits than its factorization.

18062361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006935 (or 2006932 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 18062361 is about 4249.9836470274. The cubic root of 18062361 is about 262.3764425315.

The spelling of 18062361 in words is "eighteen million, sixty-two thousand, three hundred sixty-one".