3543143220 has 36 divisors (see below), whose sum is σ = 10747534980. Its totient is φ = 944838144.

The previous prime is 3543143203. The next prime is 3543143239. The reversal of 3543143220 is 223413453.

3543143220 is a `hidden beast` number, since 3 + 5 + 431 + 4 + 3 + 220 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1050537744 + 2492605476 = 32412^2 + 49926^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9841885 + ... + 9842244.

Almost surely, 2^3543143220 is an apocalyptic number.

3543143220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3543143220 is an abundant number, since it is smaller than the sum of its proper divisors (7204391760).

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

3543143220 is a wasteful number, since it uses less digits than its factorization.

3543143220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19684144 (or 19684139 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 3543143220 is about 59524.3078078192. The cubic root of 3543143220 is about 1524.5075138206.

Adding to 3543143220 its reverse (223413453), we get a palindrome (3766556673).

The spelling of 3543143220 in words is "three billion, five hundred forty-three million, one hundred forty-three thousand, two hundred twenty".