240940 has 24 divisors (see below), whose sum is σ = 578592. Its totient is φ = 82560.

The previous prime is 240913. The next prime is 240943. The reversal of 240940 is 49042.

It is not an unprimeable number, because it can be changed into a prime (240943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721 + ... + 1000.

It is an arithmetic number, because the mean of its divisors is an integer number (24108).

2²⁴⁰⁹⁴⁰ is an apocalyptic number.

240940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240940 is an abundant number, since it is smaller than the sum of its proper divisors (337652).

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

240940 is a wasteful number, since it uses less digits than its factorization.

240940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1735 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 240940 is about 490.8563944781. The cubic root of 240940 is about 62.2256777181.

Adding to 240940 its reverse (49042), we get a palindrome (289982).

The spelling of 240940 in words is "two hundred forty thousand, nine hundred forty".