20184948 has 72 divisors (see below), whose sum is σ = 58775808. Its totient is φ = 5721408.

The previous prime is 20184929. The next prime is 20184959. The reversal of 20184948 is 84948102.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43365 + ... + 43827.

Almost surely, 2^20184948 is an apocalyptic number.

20184948 is a gapful number since it is divisible by the number (28) 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 20184948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29387904).

20184948 is an abundant number, since it is smaller than the sum of its proper divisors (38590860).

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

20184948 is a wasteful number, since it uses less digits than its factorization.

20184948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 20184948 is about 4492.7661857702. The cubic root of 20184948 is about 272.2759058795.

The spelling of 20184948 in words is "twenty million, one hundred eighty-four thousand, nine hundred forty-eight".