18902349 has 8 divisors (see below), whose sum is σ = 28003520. Its totient is φ = 12601548.

The previous prime is 18902263. The next prime is 18902357. The reversal of 18902349 is 94320981.

It is not a de Polignac number, because 18902349 - 2¹⁵ = 18869581 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 (18902369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350017 + ... + 350070.

It is an arithmetic number, because the mean of its divisors is an integer number (3500440).

Almost surely, 2^18902349 is an apocalyptic number.

It is an amenable number.

18902349 is a deficient number, since it is larger than the sum of its proper divisors (9101171).

18902349 is an equidigital number, since it uses as much as digits as its factorization.

18902349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700096 (or 700090 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 18902349 is about 4347.6831761296. The cubic root of 18902349 is about 266.3822354439.

The spelling of 18902349 in words is "eighteen million, nine hundred two thousand, three hundred forty-nine".