18235385 has 16 divisors (see below), whose sum is σ = 25197696. Its totient is φ = 12409728.

The previous prime is 18235369. The next prime is 18235387. The reversal of 18235385 is 58353281.

It is a cyclic number.

It is not a de Polignac number, because 18235385 - 2⁴ = 18235369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18235387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2894 + ... + 6696.

It is an arithmetic number, because the mean of its divisors is an integer number (1574856).

Almost surely, 2^18235385 is an apocalyptic number.

It is an amenable number.

18235385 is a deficient number, since it is larger than the sum of its proper divisors (6962311).

18235385 is a wasteful number, since it uses less digits than its factorization.

18235385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952.

The product of its digits is 28800, while the sum is 35.

The square root of 18235385 is about 4270.2909736925. The cubic root of 18235385 is about 263.2115720084.

The spelling of 18235385 in words is "eighteen million, two hundred thirty-five thousand, three hundred eighty-five".