18297349 has 16 divisors (see below), whose sum is σ = 21513600. Its totient is φ = 15238080.

The previous prime is 18297313. The next prime is 18297359. The reversal of 18297349 is 94379281.

It is a cyclic number.

It is not a de Polignac number, because 18297349 - 2⁷ = 18297221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18297359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55114 + ... + 55444.

It is an arithmetic number, because the mean of its divisors is an integer number (1344600).

Almost surely, 2^18297349 is an apocalyptic number.

It is an amenable number.

18297349 is a deficient number, since it is larger than the sum of its proper divisors (3216251).

18297349 is a wasteful number, since it uses less digits than its factorization.

18297349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its digits is 108864, while the sum is 43.

The square root of 18297349 is about 4277.5400641023. The cubic root of 18297349 is about 263.5093667119.

The spelling of 18297349 in words is "eighteen million, two hundred ninety-seven thousand, three hundred forty-nine".