18000348 has 24 divisors (see below), whose sum is σ = 44471952. Its totient is φ = 5647104.

The previous prime is 18000347. The next prime is 18000349. The reversal of 18000348 is 84300081.

It is an interprime number because it is at equal distance from previous prime (18000347) and next prime (18000349).

It is a super-2 number, since 2×18000348² = 648025056242208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18000343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43915 + ... + 44322.

It is an arithmetic number, because the mean of its divisors is an integer number (1852998).

Almost surely, 2^18000348 is an apocalyptic number.

It is an amenable number.

18000348 is an abundant number, since it is smaller than the sum of its proper divisors (26471604).

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

18000348 is a wasteful number, since it uses less digits than its factorization.

18000348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88261 (or 88259 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18000348 is about 4242.6816991144. The cubic root of 18000348 is about 262.0758283322.

The spelling of 18000348 in words is "eighteen million, three hundred forty-eight", and thus it is an aban number.