18235030 has 32 divisors (see below), whose sum is σ = 36197280. Its totient is φ = 6558720.

The previous prime is 18235027. The next prime is 18235039. The reversal of 18235030 is 3053281.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 18234992 and 18235010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18235039) 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 15 ways as a sum of consecutive naturals, for example, 9816 + ... + 11524.

It is an arithmetic number, because the mean of its divisors is an integer number (1131165).

Almost surely, 2^18235030 is an apocalyptic number.

18235030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18235030 is a deficient number, since it is larger than the sum of its proper divisors (17962250).

18235030 is a wasteful number, since it uses less digits than its factorization.

18235030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 18235030 is about 4270.2494072361. The cubic root of 18235030 is about 263.2098639608.

The spelling of 18235030 in words is "eighteen million, two hundred thirty-five thousand, thirty".