18029385 has 96 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 8164800.

The previous prime is 18029377. The next prime is 18029413. The reversal of 18029385 is 58392081.

It is not a de Polignac number, because 18029385 - 2³ = 18029377 is a prime.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 253900 + ... + 253970.

It is an arithmetic number, because the mean of its divisors is an integer number (393120).

Almost surely, 2^18029385 is an apocalyptic number.

18029385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18029385 is an abundant number, since it is smaller than the sum of its proper divisors (19710135).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18029385 is a wasteful number, since it uses less digits than its factorization.

18029385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 18029385 is about 4246.1023303731. The cubic root of 18029385 is about 262.2166738974.

The spelling of 18029385 in words is "eighteen million, twenty-nine thousand, three hundred eighty-five".