2043530401 has 6 divisors (see below), whose sum is σ = 2246194706. Its totient is φ = 1857754800.

The previous prime is 2043530393. The next prime is 2043530413. The reversal of 2043530401 is 1040353402.

It can be written as a sum of positive squares in only one way, i.e., 1670847376 + 372683025 = 40876^2 + 19305^2 .

It is not a de Polignac number, because 2043530401 - 2³ = 2043530393 is a prime.

It is a super-2 number, since 2×2043530401² = 8352032999622441602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043530491) 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 5 ways as a sum of consecutive naturals, for example, 8444220 + ... + 8444461.

Almost surely, 2^2043530401 is an apocalyptic number.

It is an amenable number.

2043530401 is a deficient number, since it is larger than the sum of its proper divisors (202664305).

2043530401 is a wasteful number, since it uses less digits than its factorization.

2043530401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16888703 (or 16888692 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2043530401 is about 45205.4244643273. The cubic root of 2043530401 is about 1268.9963345587.

Adding to 2043530401 its reverse (1040353402), we get a palindrome (3083883803).

The spelling of 2043530401 in words is "two billion, forty-three million, five hundred thirty thousand, four hundred one".