543387840 has 224 divisors, whose sum is σ = 1876592640. Its totient is φ = 132848640.

The previous prime is 543387827. The next prime is 543387863. The reversal of 543387840 is 48783345.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 543387792 and 543387801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17528625 + ... + 17528655.

Almost surely, 2^543387840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543387840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938296320).

543387840 is an abundant number, since it is smaller than the sum of its proper divisors (1333204800).

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

543387840 is an equidigital number, since it uses as much as digits as its factorization.

543387840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 543387840 is about 23310.6808137386. The cubic root of 543387840 is about 816.0247012899.

The spelling of 543387840 in words is "five hundred forty-three million, three hundred eighty-seven thousand, eight hundred forty".