20380384 has 24 divisors (see below), whose sum is σ = 40498920. Its totient is φ = 10094976.

The previous prime is 20380343. The next prime is 20380427. The reversal of 20380384 is 48308302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567 + ... + 6409.

It is an arithmetic number, because the mean of its divisors is an integer number (1687455).

Almost surely, 2^20380384 is an apocalyptic number.

It is an amenable number.

20380384 is a deficient number, since it is larger than the sum of its proper divisors (20118536).

20380384 is a wasteful number, since it uses less digits than its factorization.

20380384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5962 (or 5954 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20380384 is about 4514.4638662858. The cubic root of 20380384 is about 273.1518340316.

Adding to 20380384 its reverse (48308302), we get a palindrome (68688686).

The spelling of 20380384 in words is "twenty million, three hundred eighty thousand, three hundred eighty-four".