18579745 has 8 divisors (see below), whose sum is σ = 23265216. Its totient is φ = 14217456.

The previous prime is 18579731. The next prime is 18579761. The reversal of 18579745 is 54797581.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18579745 - 2¹⁷ = 18448673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18579695 and 18579704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80667 + ... + 80896.

It is an arithmetic number, because the mean of its divisors is an integer number (2908152).

Almost surely, 2^18579745 is an apocalyptic number.

It is an amenable number.

18579745 is a deficient number, since it is larger than the sum of its proper divisors (4685471).

18579745 is a wasteful number, since it uses less digits than its factorization.

18579745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161591.

The product of its digits is 352800, while the sum is 46.

The square root of 18579745 is about 4310.4228330873. The cubic root of 18579745 is about 264.8580941912.

The spelling of 18579745 in words is "eighteen million, five hundred seventy-nine thousand, seven hundred forty-five".