3234143440 has 80 divisors (see below), whose sum is σ = 8225455680. Its totient is φ = 1172828160.

The previous prime is 3234143431. The next prime is 3234143447. The reversal of 3234143440 is 443414323.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3234143399 and 3234143408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3234143447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328672 + ... + 338368.

It is an arithmetic number, because the mean of its divisors is an integer number (102818196).

Almost surely, 2^3234143440 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 3234143440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4112727840).

3234143440 is an abundant number, since it is smaller than the sum of its proper divisors (4991312240).

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

3234143440 is a wasteful number, since it uses less digits than its factorization.

3234143440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100 (or 10094 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 3234143440 is about 56869.5299787153. The cubic root of 3234143440 is about 1478.8351316142.

Adding to 3234143440 its reverse (443414323), we get a palindrome (3677557763).

The spelling of 3234143440 in words is "three billion, two hundred thirty-four million, one hundred forty-three thousand, four hundred forty".