18454245 has 16 divisors (see below), whose sum is σ = 29800320. Its totient is φ = 9751104.

The previous prime is 18454213. The next prime is 18454253. The reversal of 18454245 is 54245481.

It is a happy number.

It is not a de Polignac number, because 18454245 - 2⁵ = 18454213 is a prime.

It is a congruent number.

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, 4009 + ... + 7278.

It is an arithmetic number, because the mean of its divisors is an integer number (1862520).

Almost surely, 2^18454245 is an apocalyptic number.

18454245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18454245 is a deficient number, since it is larger than the sum of its proper divisors (11346075).

18454245 is a wasteful number, since it uses less digits than its factorization.

18454245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11404.

The product of its digits is 25600, while the sum is 33.

The square root of 18454245 is about 4295.8404299974. The cubic root of 18454245 is about 264.2604036424.

The spelling of 18454245 in words is "eighteen million, four hundred fifty-four thousand, two hundred forty-five".