2143504434 has 16 divisors (see below), whose sum is σ = 4434837120. Its totient is φ = 689863440.

The previous prime is 2143504423. The next prime is 2143504453. The reversal of 2143504434 is 4344053412.

It is a super-2 number, since 2×2143504434² = 9189222517155320712, which contains 22 as substring.

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, 6159322 + ... + 6159669.

It is an arithmetic number, because the mean of its divisors is an integer number (277177320).

Almost surely, 2^2143504434 is an apocalyptic number.

2143504434 is an abundant number, since it is smaller than the sum of its proper divisors (2291332686).

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

2143504434 is a wasteful number, since it uses less digits than its factorization.

2143504434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12319025.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 2143504434 is about 46297.9960041469. The cubic root of 2143504434 is about 1289.3617887459.

Adding to 2143504434 its reverse (4344053412), we get a palindrome (6487557846).

The spelling of 2143504434 in words is "two billion, one hundred forty-three million, five hundred four thousand, four hundred thirty-four".