20248384 has 28 divisors (see below), whose sum is σ = 43272964. Its totient is φ = 9345024.

The previous prime is 20248381. The next prime is 20248427. The reversal of 20248384 is 48384202.

It can be written as a sum of positive squares in 2 ways, for example, as 13897984 + 6350400 = 3728^2 + 2520^2 .

It is a super-3 number, since 3×20248384³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20248381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11337 + ... + 13000.

It is an arithmetic number, because the mean of its divisors is an integer number (1545463).

Almost surely, 2^20248384 is an apocalyptic number.

It is an amenable number.

20248384 is an abundant number, since it is smaller than the sum of its proper divisors (23024580).

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

20248384 is a wasteful number, since it uses less digits than its factorization.

20248384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24362 (or 24352 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 20248384 is about 4499.8204408621. The cubic root of 20248384 is about 272.5608381964.

The spelling of 20248384 in words is "twenty million, two hundred forty-eight thousand, three hundred eighty-four".