234321333440 has 112 divisors (see below), whose sum is σ = 595391869920. Its totient is φ = 87578910720.

The previous prime is 234321333409. The next prime is 234321333461. The reversal of 234321333440 is 44333123432.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 234321333397 and 234321333406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179870 + ... + 707810.

Almost surely, 2^234321333440 is an apocalyptic number.

234321333440 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 234321333440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297695934960).

234321333440 is an abundant number, since it is smaller than the sum of its proper divisors (361070536480).

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

234321333440 is a wasteful number, since it uses less digits than its factorization.

234321333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528050 (or 528040 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 234321333440 its reverse (44333123432), we get a palindrome (278654456872).

The spelling of 234321333440 in words is "two hundred thirty-four billion, three hundred twenty-one million, three hundred thirty-three thousand, four hundred forty".