543231240 has 32 divisors (see below), whose sum is σ = 1629694080. Its totient is φ = 144861632.

The previous prime is 543231239. The next prime is 543231251. The reversal of 543231240 is 42132345.

It is a super-2 number, since 2×543231240² = 590200360223875200, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 543231240.

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, 2263344 + ... + 2263583.

It is an arithmetic number, because the mean of its divisors is an integer number (50927940).

Almost surely, 2^543231240 is an apocalyptic number.

It is an amenable number.

543231240 is an abundant number, since it is smaller than the sum of its proper divisors (1086462840).

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

543231240 is a wasteful number, since it uses less digits than its factorization.

543231240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526941 (or 4526937 counting only the distinct ones).

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

The square root of 543231240 is about 23307.3215964426. The cubic root of 543231240 is about 815.9463031755.

Adding to 543231240 its reverse (42132345), we get a palindrome (585363585).

The spelling of 543231240 in words is "five hundred forty-three million, two hundred thirty-one thousand, two hundred forty".