234242034440 has 64 divisors (see below), whose sum is σ = 550641110400. Its totient is φ = 89511972352.

The previous prime is 234242034359. The next prime is 234242034443. The reversal of 234242034440 is 44430242432.

It is a super-2 number, since 2×234242034440² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234242034397 and 234242034406.

It is not an unprimeable number, because it can be changed into a prime (234242034443) 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, 586919 + ... + 901641.

It is an arithmetic number, because the mean of its divisors is an integer number (8603767350).

Almost surely, 2^234242034440 is an apocalyptic number.

234242034440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234242034440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275320555200).

234242034440 is an abundant number, since it is smaller than the sum of its proper divisors (316399075960).

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

234242034440 is a wasteful number, since it uses less digits than its factorization.

234242034440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315566 (or 315562 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 234242034440 its reverse (44430242432), we get a palindrome (278672276872).

The spelling of 234242034440 in words is "two hundred thirty-four billion, two hundred forty-two million, thirty-four thousand, four hundred forty".