2143423296 has 196 divisors, whose sum is σ = 7289243232. Its totient is φ = 612313344.

The previous prime is 2143423171. The next prime is 2143423309. The reversal of 2143423296 is 6923243412.

2143423296 is a `hidden beast` number, since 2 + 143 + 423 + 2 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2143423296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 323311 + ... + 329873.

Almost surely, 2^2143423296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143423296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3644621616).

2143423296 is an abundant number, since it is smaller than the sum of its proper divisors (5145819936).

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

2143423296 is an frugal number, since it uses more digits than its factorization.

2143423296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600 (or 6575 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 2143423296 is about 46297.1197376251. The cubic root of 2143423296 is about 1289.3455198181.

The spelling of 2143423296 in words is "two billion, one hundred forty-three million, four hundred twenty-three thousand, two hundred ninety-six".