224431404400 has 240 divisors, whose sum is σ = 636482816064. Its totient is φ = 74458275840.

The previous prime is 224431404391. The next prime is 224431404409. The reversal of 224431404400 is 4404134422.

It is an interprime number because it is at equal distance from previous prime (224431404391) and next prime (224431404409).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224431404409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10822842 + ... + 10843558.

Almost surely, 2^224431404400 is an apocalyptic number.

224431404400 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 224431404400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318241408032).

224431404400 is an abundant number, since it is smaller than the sum of its proper divisors (412051411664).

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

224431404400 is a wasteful number, since it uses less digits than its factorization.

224431404400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20868 (or 20857 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 224431404400 its reverse (4404134422), we get a palindrome (228835538822).

The spelling of 224431404400 in words is "two hundred twenty-four billion, four hundred thirty-one million, four hundred four thousand, four hundred".