18017340 has 48 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 4367680.

The previous prime is 18017333. The next prime is 18017353. The reversal of 18017340 is 4371081.

It is a self number, because there is not a number n which added to its sum of digits gives 18017340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12990 + ... + 14309.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 2^18017340 is an apocalyptic number.

18017340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18017340 is an abundant number, since it is smaller than the sum of its proper divisors (37019460).

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

18017340 is a wasteful number, since it uses less digits than its factorization.

18017340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27322 (or 27320 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 18017340 is about 4244.6837338016. The cubic root of 18017340 is about 262.1582673304.

The spelling of 18017340 in words is "eighteen million, seventeen thousand, three hundred forty".