234440 has 16 divisors (see below), whose sum is σ = 527580. Its totient is φ = 93760.

The previous prime is 234431. The next prime is 234457. The reversal of 234440 is 44432.

234440 = 45² + 46² + ... + 92².

234440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 232324 + 2116 = 482^2 + 46^2 .

It is a super-2 number, since 2×234440² = 109924227200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2891 + ... + 2970.

2²³⁴⁴⁴⁰ is an apocalyptic number.

234440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234440 is an abundant number, since it is smaller than the sum of its proper divisors (293140).

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

234440 is a wasteful number, since it uses less digits than its factorization.

234440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872 (or 5868 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 234440 is about 484.1900453334. The cubic root of 234440 is about 61.6610010216.

Adding to 234440 its reverse (44432), we get a palindrome (278872).

The spelling of 234440 in words is "two hundred thirty-four thousand, four hundred forty".