233440021320 has 256 divisors, whose sum is σ = 811352505600. Its totient is φ = 53102837760.

The previous prime is 233440021301. The next prime is 233440021351. The reversal of 233440021320 is 23120044332.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7546846 + ... + 7577714.

It is an arithmetic number, because the mean of its divisors is an integer number (3169345725).

Almost surely, 2^233440021320 is an apocalyptic number.

233440021320 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 233440021320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405676252800).

233440021320 is an abundant number, since it is smaller than the sum of its proper divisors (577912484280).

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

233440021320 is a wasteful number, since it uses less digits than its factorization.

233440021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31248 (or 31244 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 233440021320 its reverse (23120044332), we get a palindrome (256560065652).

The spelling of 233440021320 in words is "two hundred thirty-three billion, four hundred forty million, twenty-one thousand, three hundred twenty".