234047440 has 80 divisors (see below), whose sum is σ = 596211840. Its totient is φ = 84738560.

The previous prime is 234047419. The next prime is 234047447. The reversal of 234047440 is 44740432.

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

It is a junction number, because it is equal to n+sod(n) for n = 234047399 and 234047408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234047447) 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, 278541 + ... + 279379.

It is an arithmetic number, because the mean of its divisors is an integer number (7452648).

Almost surely, 2^234047440 is an apocalyptic number.

234047440 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 234047440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298105920).

234047440 is an abundant number, since it is smaller than the sum of its proper divisors (362164400).

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

234047440 is a wasteful number, since it uses less digits than its factorization.

234047440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 234047440 is about 15298.6090871033. The cubic root of 234047440 is about 616.2656553617.

Adding to 234047440 its reverse (44740432), we get a palindrome (278787872).

The spelling of 234047440 in words is "two hundred thirty-four million, forty-seven thousand, four hundred forty".