18148700 has 36 divisors (see below), whose sum is σ = 39809952. Its totient is φ = 7180800.

The previous prime is 18148687. The next prime is 18148717. The reversal of 18148700 is 784181.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 8765 + ... + 10635.

It is an arithmetic number, because the mean of its divisors is an integer number (1105832).

Almost surely, 2^18148700 is an apocalyptic number.

18148700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18148700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19904976).

18148700 is an abundant number, since it is smaller than the sum of its proper divisors (21661252).

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

18148700 is a wasteful number, since it uses less digits than its factorization.

18148700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 18148700 is about 4260.1291060248. The cubic root of 18148700 is about 262.7938357421.

The spelling of 18148700 in words is "eighteen million, one hundred forty-eight thousand, seven hundred".