233040 has 40 divisors (see below), whose sum is σ = 723168. Its totient is φ = 62080.

The previous prime is 233021. The next prime is 233069. The reversal of 233040 is 40332.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246 + ... + 725.

2²³³⁰⁴⁰ is an apocalyptic number.

233040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233040 is an abundant number, since it is smaller than the sum of its proper divisors (490128).

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

233040 is a wasteful number, since it uses less digits than its factorization.

233040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 233040 is about 482.7421672073. The cubic root of 233040 is about 61.5380160224.

Adding to 233040 its reverse (40332), we get a palindrome (273372).

The spelling of 233040 in words is "two hundred thirty-three thousand, forty".