18429413 has 8 divisors (see below), whose sum is σ = 19509600. Its totient is φ = 17378928.

The previous prime is 18429379. The next prime is 18429419. The reversal of 18429413 is 31492481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18429413 - 2⁶ = 18429349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18429413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18429419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6143 + ... + 8636.

It is an arithmetic number, because the mean of its divisors is an integer number (2438700).

Almost surely, 2^18429413 is an apocalyptic number.

It is an amenable number.

18429413 is a deficient number, since it is larger than the sum of its proper divisors (1080187).

18429413 is a wasteful number, since it uses less digits than its factorization.

18429413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14851.

The product of its digits is 6912, while the sum is 32.

The square root of 18429413 is about 4292.9492193596. The cubic root of 18429413 is about 264.1418209916.

The spelling of 18429413 in words is "eighteen million, four hundred twenty-nine thousand, four hundred thirteen".