233022422440 has 96 divisors (see below), whose sum is σ = 567465934680. Its totient is φ = 86070652928.

The previous prime is 233022422419. The next prime is 233022422461. The reversal of 233022422440 is 44224220332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (233022422419) and next prime (233022422461).

It can be written as a sum of positive squares in 12 ways, for example, as 33765532516 + 199256889924 = 183754^2 + 446382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233022422399 and 233022422408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422514 + ... + 802846.

Almost surely, 2^233022422440 is an apocalyptic number.

233022422440 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 233022422440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283732967340).

233022422440 is an abundant number, since it is smaller than the sum of its proper divisors (334443512240).

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

233022422440 is a wasteful number, since it uses less digits than its factorization.

233022422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380431 (or 380410 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 233022422440 its reverse (44224220332), we get a palindrome (277246642772).

The spelling of 233022422440 in words is "two hundred thirty-three billion, twenty-two million, four hundred twenty-two thousand, four hundred forty".