2143430894 has 16 divisors (see below), whose sum is σ = 3508534656. Its totient is φ = 973980600.

The previous prime is 2143430893. The next prime is 2143430899. The reversal of 2143430894 is 4980343412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143430893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65849 + ... + 92859.

It is an arithmetic number, because the mean of its divisors is an integer number (219283416).

Almost surely, 2^2143430894 is an apocalyptic number.

2143430894 is a deficient number, since it is larger than the sum of its proper divisors (1365103762).

2143430894 is a wasteful number, since it uses less digits than its factorization.

2143430894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30631.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 2143430894 is about 46297.2017944929. The cubic root of 2143430894 is about 1289.3470433056.

The spelling of 2143430894 in words is "two billion, one hundred forty-three million, four hundred thirty thousand, eight hundred ninety-four".