241640 has 32 divisors (see below), whose sum is σ = 622080. Its totient is φ = 82752.

The previous prime is 241639. The next prime is 241643. The reversal of 241640 is 46142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241643) 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, 152 + ... + 711.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2²⁴¹⁶⁴⁰ is an apocalyptic number.

241640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

241640 is an abundant number, since it is smaller than the sum of its proper divisors (380440).

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

241640 is a wasteful number, since it uses less digits than its factorization.

241640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 241640 is about 491.5689168367. The cubic root of 241640 is about 62.2858806173.

Adding to 241640 its reverse (46142), we get a palindrome (287782).

The spelling of 241640 in words is "two hundred forty-one thousand, six hundred forty".