20054424 has 128 divisors (see below), whose sum is σ = 60480000. Its totient is φ = 5474304.

The previous prime is 20054417. The next prime is 20054431. The reversal of 20054424 is 42445002.

It is an interprime number because it is at equal distance from previous prime (20054417) and next prime (20054431).

It is a self number, because there is not a number n which added to its sum of digits gives 20054424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100677 + ... + 100875.

It is an arithmetic number, because the mean of its divisors is an integer number (472500).

Almost surely, 2^20054424 is an apocalyptic number.

20054424 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 20054424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30240000).

20054424 is an abundant number, since it is smaller than the sum of its proper divisors (40425576).

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

20054424 is a wasteful number, since it uses less digits than its factorization.

20054424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 20054424 is about 4478.2166093212. The cubic root of 20054424 is about 271.6877544363.

Adding to 20054424 its reverse (42445002), we get a palindrome (62499426).

The spelling of 20054424 in words is "twenty million, fifty-four thousand, four hundred twenty-four".