543404221400 has 192 divisors, whose sum is σ = 1385553729600. Its totient is φ = 197279989760.

The previous prime is 543404221369. The next prime is 543404221421. The reversal of 543404221400 is 4122404345.

It is a super-3 number, since 3×543404221400³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93962909 + ... + 93968691.

It is an arithmetic number, because the mean of its divisors is an integer number (7216425675).

Almost surely, 2^543404221400 is an apocalyptic number.

543404221400 is a gapful number since it is divisible by the number (50) 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 543404221400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692776864800).

543404221400 is an abundant number, since it is smaller than the sum of its proper divisors (842149508200).

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

543404221400 is a wasteful number, since it uses less digits than its factorization.

543404221400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798 (or 6789 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 543404221400 its reverse (4122404345), we get a palindrome (547526625745).

The spelling of 543404221400 in words is "five hundred forty-three billion, four hundred four million, two hundred twenty-one thousand, four hundred".