234223440 has 80 divisors (see below), whose sum is σ = 792110016. Its totient is φ = 56780800.

The previous prime is 234223439. The next prime is 234223441. The reversal of 234223440 is 44322432.

234223440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (234223439) and next prime (234223441).

It is a tau number, because it is divible by the number of its divisors (80).

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 234223440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234223441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41721 + ... + 47000.

Almost surely, 2^234223440 is an apocalyptic number.

234223440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234223440 is an abundant number, since it is smaller than the sum of its proper divisors (557886576).

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

234223440 is a wasteful number, since it uses less digits than its factorization.

234223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88748 (or 88742 counting only the distinct ones).

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

The square root of 234223440 is about 15304.3601630385. The cubic root of 234223440 is about 616.4200906894.

Adding to 234223440 its reverse (44322432), we get a palindrome (278545872).

It can be divided in two parts, 23422 and 3440, that added together give a palindrome (26862).

The spelling of 234223440 in words is "two hundred thirty-four million, two hundred twenty-three thousand, four hundred forty".