543728640 has 352 divisors, whose sum is σ = 2145911040. Its totient is φ = 114425856.

The previous prime is 543728617. The next prime is 543728659. The reversal of 543728640 is 46827345.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1397566 + ... + 1397954.

Almost surely, 2^543728640 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 543728640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072955520).

543728640 is an abundant number, since it is smaller than the sum of its proper divisors (1602182400).

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

543728640 is a wasteful number, since it uses less digits than its factorization.

543728640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 543728640 is about 23317.9896217491. The cubic root of 543728640 is about 816.1952627677.

The spelling of 543728640 in words is "five hundred forty-three million, seven hundred twenty-eight thousand, six hundred forty".