20052320 has 48 divisors (see below), whose sum is σ = 49442400. Its totient is φ = 7670784.

The previous prime is 20052293. The next prime is 20052337. The reversal of 20052320 is 2325002.

It is a junction number, because it is equal to n+sod(n) for n = 20052295 and 20052304.

It is a congruent number.

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, 956 + ... + 6404.

It is an arithmetic number, because the mean of its divisors is an integer number (1030050).

Almost surely, 2^20052320 is an apocalyptic number.

20052320 is a gapful number since it is divisible by the number (20) 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 20052320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24721200).

20052320 is an abundant number, since it is smaller than the sum of its proper divisors (29390080).

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

20052320 is a wasteful number, since it uses less digits than its factorization.

20052320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487 (or 5479 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20052320 is about 4477.9816882162. The cubic root of 20052320 is about 271.6782527751.

Adding to 20052320 its reverse (2325002), we get a palindrome (22377322).

The spelling of 20052320 in words is "twenty million, fifty-two thousand, three hundred twenty".