233224440 has 32 divisors (see below), whose sum is σ = 699673680. Its totient is φ = 62193152.

The previous prime is 233224427. The next prime is 233224471. The reversal of 233224440 is 44422332.

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

It is a self number, because there is not a number n which added to its sum of digits gives 233224440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971649 + ... + 971888.

Almost surely, 2^233224440 is an apocalyptic number.

233224440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233224440 is an abundant number, since it is smaller than the sum of its proper divisors (466449240).

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

233224440 is a wasteful number, since it uses less digits than its factorization.

233224440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943551 (or 1943547 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 233224440 is about 15271.6875295430. The cubic root of 233224440 is about 615.5424653884.

Adding to 233224440 its reverse (44422332), we get a palindrome (277646772).

The spelling of 233224440 in words is "two hundred thirty-three million, two hundred twenty-four thousand, four hundred forty".