20234784 has 48 divisors (see below), whose sum is σ = 53555040. Its totient is φ = 6689280.

The previous prime is 20234759. The next prime is 20234801. The reversal of 20234784 is 48743202.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11772 + ... + 13380.

It is an arithmetic number, because the mean of its divisors is an integer number (1115730).

Almost surely, 2^20234784 is an apocalyptic number.

20234784 is a gapful number since it is divisible by the number (24) 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 20234784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26777520).

20234784 is an abundant number, since it is smaller than the sum of its proper divisors (33320256).

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

20234784 is a wasteful number, since it uses less digits than its factorization.

20234784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 20234784 is about 4498.3090156191. The cubic root of 20234784 is about 272.4998019245.

Adding to 20234784 its reverse (48743202), we get a palindrome (68977986).

The spelling of 20234784 in words is "twenty million, two hundred thirty-four thousand, seven hundred eighty-four".