20240384 has 24 divisors (see below), whose sum is σ = 40474980. Its totient is φ = 10119168.

The previous prime is 20240383. The next prime is 20240399. The reversal of 20240384 is 48304202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2894 + ... + 6989.

Almost surely, 2^20240384 is an apocalyptic number.

It is an amenable number.

20240384 is a deficient number, since it is larger than the sum of its proper divisors (20234596).

20240384 is an frugal number, since it uses more digits than its factorization.

20240384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905 (or 9885 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20240384 is about 4498.9314286839. The cubic root of 20240384 is about 272.5249378182.

Adding to 20240384 its reverse (48304202), we get a palindrome (68544586).

The spelling of 20240384 in words is "twenty million, two hundred forty thousand, three hundred eighty-four".