543213312 has 72 divisors (see below), whose sum is σ = 1449236880. Its totient is φ = 180633600.

The previous prime is 543213247. The next prime is 543213329. The reversal of 543213312 is 213312345.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537864 + ... + 538872.

It is an arithmetic number, because the mean of its divisors is an integer number (20128290).

Almost surely, 2^543213312 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 543213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724618440).

543213312 is an abundant number, since it is smaller than the sum of its proper divisors (906023568).

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

543213312 is a wasteful number, since it uses less digits than its factorization.

543213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1715 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 543213312 is about 23306.9369930929. The cubic root of 543213312 is about 815.9373269820.

Adding to 543213312 its reverse (213312345), we get a palindrome (756525657).

The spelling of 543213312 in words is "five hundred forty-three million, two hundred thirteen thousand, three hundred twelve".