233312232440 has 32 divisors (see below), whose sum is σ = 599945741280. Its totient is φ = 79992765312.

The previous prime is 233312232409. The next prime is 233312232443. The reversal of 233312232440 is 44232213332.

It is a super-2 number, since 2×233312232440² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233312232443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416628707 + ... + 416629266.

It is an arithmetic number, because the mean of its divisors is an integer number (18748304415).

Almost surely, 2^233312232440 is an apocalyptic number.

233312232440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233312232440 is an abundant number, since it is smaller than the sum of its proper divisors (366633508840).

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

233312232440 is a wasteful number, since it uses less digits than its factorization.

233312232440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833257991 (or 833257987 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 233312232440 its reverse (44232213332), we get a palindrome (277544445772).

The spelling of 233312232440 in words is "two hundred thirty-three billion, three hundred twelve million, two hundred thirty-two thousand, four hundred forty".