18070945 has 16 divisors (see below), whose sum is σ = 22230720. Its totient is φ = 14097600.

The previous prime is 18070891. The next prime is 18070963. The reversal of 18070945 is 54907081.

It is a happy number.

It is not a de Polignac number, because 18070945 - 2⁷ = 18070817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18070945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54430 + ... + 54760.

It is an arithmetic number, because the mean of its divisors is an integer number (1389420).

Almost surely, 2^18070945 is an apocalyptic number.

It is an amenable number.

18070945 is a deficient number, since it is larger than the sum of its proper divisors (4159775).

18070945 is a wasteful number, since it uses less digits than its factorization.

18070945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 18070945 is about 4250.9934133094. The cubic root of 18070945 is about 262.4180000867.

The spelling of 18070945 in words is "eighteen million, seventy thousand, nine hundred forty-five".