18492349 has 2 divisors, whose sum is σ = 18492350. Its totient is φ = 18492348.

The previous prime is 18492347. The next prime is 18492359. The reversal of 18492349 is 94329481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18429849 + 62500 = 4293^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 18492349 - 2¹ = 18492347 is a prime.

Together with 18492347, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18492347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9246174 + 9246175.

It is an arithmetic number, because the mean of its divisors is an integer number (9246175).

Almost surely, 2^18492349 is an apocalyptic number.

It is an amenable number.

18492349 is a deficient number, since it is larger than the sum of its proper divisors (1).

18492349 is an equidigital number, since it uses as much as digits as its factorization.

18492349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 18492349 is about 4300.2731308604. The cubic root of 18492349 is about 264.4421586803.

The spelling of 18492349 in words is "eighteen million, four hundred ninety-two thousand, three hundred forty-nine".