2031543420 has 48 divisors (see below), whose sum is σ = 5692944768. Its totient is φ = 541304640.

The previous prime is 2031543373. The next prime is 2031543427. The reversal of 2031543420 is 243451302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031543427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64347 + ... + 90573.

It is an arithmetic number, because the mean of its divisors is an integer number (118603016).

Almost surely, 2^2031543420 is an apocalyptic number.

2031543420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031543420 is an abundant number, since it is smaller than the sum of its proper divisors (3661401348).

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

2031543420 is a wasteful number, since it uses less digits than its factorization.

2031543420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27530 (or 27528 counting only the distinct ones).

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

The square root of 2031543420 is about 45072.6460283840. The cubic root of 2031543420 is about 1266.5102326048.

Adding to 2031543420 its reverse (243451302), we get a palindrome (2274994722).

The spelling of 2031543420 in words is "two billion, thirty-one million, five hundred forty-three thousand, four hundred twenty".