18343479 has 24 divisors (see below), whose sum is σ = 30728320. Its totient is φ = 9527760.

The previous prime is 18343477. The next prime is 18343483. The reversal of 18343479 is 97434381.

It is not a de Polignac number, because 18343479 - 2¹ = 18343477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18343477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1069 + ... + 6150.

Almost surely, 2^18343479 is an apocalyptic number.

18343479 is a deficient number, since it is larger than the sum of its proper divisors (12384841).

18343479 is a wasteful number, since it uses less digits than its factorization.

18343479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251 (or 7240 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 18343479 is about 4282.9287876405. The cubic root of 18343479 is about 263.7306280180.

The spelling of 18343479 in words is "eighteen million, three hundred forty-three thousand, four hundred seventy-nine".