18894700 has 72 divisors (see below), whose sum is σ = 45465840. Its totient is φ = 6758400.

The previous prime is 18894697. The next prime is 18894713. The reversal of 18894700 is 749881.

18894700 = T₆₇₂ + T₆₇₃ + ... + T₇₄₆.

It is a self number, because there is not a number n which added to its sum of digits gives 18894700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97804 + ... + 97996.

It is an arithmetic number, because the mean of its divisors is an integer number (631470).

Almost surely, 2^18894700 is an apocalyptic number.

18894700 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 18894700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22732920).

18894700 is an abundant number, since it is smaller than the sum of its proper divisors (26571140).

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

18894700 is a wasteful number, since it uses less digits than its factorization.

18894700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 18894700 is about 4346.8034232065. The cubic root of 18894700 is about 266.3462992997.

The spelling of 18894700 in words is "eighteen million, eight hundred ninety-four thousand, seven hundred".