18535340 has 12 divisors (see below), whose sum is σ = 38924256. Its totient is φ = 7414128.

The previous prime is 18535339. The next prime is 18535369. The reversal of 18535340 is 4353581.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 463364 + ... + 463403.

It is an arithmetic number, because the mean of its divisors is an integer number (3243688).

Almost surely, 2^18535340 is an apocalyptic number.

18535340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18535340 is an abundant number, since it is smaller than the sum of its proper divisors (20388916).

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

18535340 is a wasteful number, since it uses less digits than its factorization.

18535340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926776 (or 926774 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 18535340 is about 4305.2688650072. The cubic root of 18535340 is about 264.6469250637.

The spelling of 18535340 in words is "eighteen million, five hundred thirty-five thousand, three hundred forty".