2143423332 has 36 divisors (see below), whose sum is σ = 5420354940. Its totient is φ = 714176832.

The previous prime is 2143423327. The next prime is 2143423333. The reversal of 2143423332 is 2333243412.

It can be written as a sum of positive squares in 2 ways, for example, as 537497856 + 1605925476 = 23184^2 + 40074^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 2143423296 and 2143423305.

It is not an unprimeable number, because it can be changed into a prime (2143423333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85894 + ... + 108002.

It is an arithmetic number, because the mean of its divisors is an integer number (150565415).

Almost surely, 2^2143423332 is an apocalyptic number.

It is an amenable number.

2143423332 is an abundant number, since it is smaller than the sum of its proper divisors (3276931608).

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

2143423332 is a wasteful number, since it uses less digits than its factorization.

2143423332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24812 (or 24807 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 2143423332 is about 46297.1201264182. The cubic root of 2143423332 is about 1289.3455270365.

Adding to 2143423332 its reverse (2333243412), we get a palindrome (4476666744).

The spelling of 2143423332 in words is "two billion, one hundred forty-three million, four hundred twenty-three thousand, three hundred thirty-two".