18297345 has 32 divisors (see below), whose sum is σ = 32171904. Its totient is φ = 8806400.

The previous prime is 18297313. The next prime is 18297359. The reversal of 18297345 is 54379281.

It is not a de Polignac number, because 18297345 - 2⁵ = 18297313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28225 + ... + 28865.

It is an arithmetic number, because the mean of its divisors is an integer number (1005372).

Almost surely, 2^18297345 is an apocalyptic number.

18297345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18297345 is a deficient number, since it is larger than the sum of its proper divisors (13874559).

18297345 is a wasteful number, since it uses less digits than its factorization.

18297345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its digits is 60480, while the sum is 39.

The square root of 18297345 is about 4277.5395965438. The cubic root of 18297345 is about 263.5093475099.

The spelling of 18297345 in words is "eighteen million, two hundred ninety-seven thousand, three hundred forty-five".