240030 has 64 divisors (see below), whose sum is σ = 737280. Its totient is φ = 54432.

The previous prime is 240017. The next prime is 240041. The reversal of 240030 is 30042.

It is a super-2 number, since 2×240030² = 115228801800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 239994 and 240021.

It is a congruent number.

It is an unprimeable number.

240030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1827 + ... + 1953.

It is an arithmetic number, because the mean of its divisors is an integer number (11520).

2²⁴⁰⁰³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368640).

240030 is an abundant number, since it is smaller than the sum of its proper divisors (497250).

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

240030 is a wasteful number, since it uses less digits than its factorization.

240030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 240030 is about 489.9285662216. The cubic root of 240030 is about 62.1472393716.

Adding to 240030 its reverse (30042), we get a palindrome (270072).

The spelling of 240030 in words is "two hundred forty thousand, thirty".