2043000000400 has 60 divisors (see below), whose sum is σ = 4909465670292. Its totient is φ = 817007173120.

The previous prime is 2043000000359. The next prime is 2043000000511. The reversal of 2043000000400 is 40000003402.

It can be written as a sum of positive squares in 6 ways, for example, as 306424245136 + 1736575755264 = 553556^2 + 1317792^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1100742 + ... + 2301658.

Almost surely, 2^{2043000000400} is an apocalyptic number.

2043000000400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043000000400 is an abundant number, since it is smaller than the sum of its proper divisors (2866465669892).

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

2043000000400 is a wasteful number, since it uses less digits than its factorization.

2043000000400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205188 (or 1205177 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

Adding to 2043000000400 its reverse (40000003402), we get a palindrome (2083000003802).

The spelling of 2043000000400 in words is "two trillion, forty-three billion, four hundred", and thus it is an aban number.