2143401434 has 16 divisors (see below), whose sum is σ = 3253087656. Its totient is φ = 1059072000.

The previous prime is 2143401409. The next prime is 2143401443. The reversal of 2143401434 is 4341043412.

It can be written as a sum of positive squares in 4 ways, for example, as 2097365209 + 46036225 = 45797^2 + 6785^2 .

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, 128114 + ... + 143874.

Almost surely, 2^2143401434 is an apocalyptic number.

2143401434 is a deficient number, since it is larger than the sum of its proper divisors (1109686222).

2143401434 is a wasteful number, since it uses less digits than its factorization.

2143401434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16561.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 2143401434 is about 46296.8836316226. The cubic root of 2143401434 is about 1289.3411362124.

Adding to 2143401434 its reverse (4341043412), we get a palindrome (6484444846).

The spelling of 2143401434 in words is "two billion, one hundred forty-three million, four hundred one thousand, four hundred thirty-four".