18709848 has 48 divisors (see below), whose sum is σ = 51639120. Its totient is φ = 6117696.

The previous prime is 18709841. The next prime is 18709853. The reversal of 18709848 is 84890781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18709841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1365 + ... + 6267.

It is an arithmetic number, because the mean of its divisors is an integer number (1075815).

Almost surely, 2^18709848 is an apocalyptic number.

18709848 is a gapful number since it is divisible by the number (18) 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 18709848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25819560).

18709848 is an abundant number, since it is smaller than the sum of its proper divisors (32929272).

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

18709848 is a wasteful number, since it uses less digits than its factorization.

18709848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968 (or 4961 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 18709848 is about 4325.4881805410. The cubic root of 18709848 is about 265.4748718065.

The spelling of 18709848 in words is "eighteen million, seven hundred nine thousand, eight hundred forty-eight".