20380052 has 24 divisors (see below), whose sum is σ = 44466240. Its totient is φ = 7940160.

The previous prime is 20380049. The next prime is 20380079. The reversal of 20380052 is 25008302.

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, 32777 + ... + 33392.

It is an arithmetic number, because the mean of its divisors is an integer number (1852760).

Almost surely, 2^20380052 is an apocalyptic number.

20380052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20380052 is an abundant number, since it is smaller than the sum of its proper divisors (24086188).

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

20380052 is a wasteful number, since it uses less digits than its factorization.

20380052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66191 (or 66189 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20380052 is about 4514.4270954353. The cubic root of 20380052 is about 273.1503507933.

Adding to 20380052 its reverse (25008302), we get a palindrome (45388354).

The spelling of 20380052 in words is "twenty million, three hundred eighty thousand, fifty-two".