543431220 has 48 divisors (see below), whose sum is σ = 1558726848. Its totient is φ = 141379840.

The previous prime is 543431191. The next prime is 543431257. The reversal of 543431220 is 22134345.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107994 + ... + 112913.

It is an arithmetic number, because the mean of its divisors is an integer number (32473476).

Almost surely, 2^543431220 is an apocalyptic number.

It is an amenable number.

543431220 is an abundant number, since it is smaller than the sum of its proper divisors (1015295628).

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

543431220 is a wasteful number, since it uses less digits than its factorization.

543431220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220960 (or 220958 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 543431220 is about 23311.6112699230. The cubic root of 543431220 is about 816.0464158045.

Adding to 543431220 its reverse (22134345), we get a palindrome (565565565).

The spelling of 543431220 in words is "five hundred forty-three million, four hundred thirty-one thousand, two hundred twenty".