241936640 has 72 divisors (see below), whose sum is σ = 632233728. Its totient is φ = 87971840.

The previous prime is 241936637. The next prime is 241936649. The reversal of 241936640 is 46639142.

It is a self number, because there is not a number n which added to its sum of digits gives 241936640.

It is not an unprimeable number, because it can be changed into a prime (241936649) 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, 5489 + ... + 22671.

It is an arithmetic number, because the mean of its divisors is an integer number (8781024).

Almost surely, 2^241936640 is an apocalyptic number.

241936640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 241936640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316116864).

241936640 is an abundant number, since it is smaller than the sum of its proper divisors (390297088).

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

241936640 is a wasteful number, since it uses less digits than its factorization.

241936640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17215 (or 17201 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 241936640 is about 15554.3125852607. The cubic root of 241936640 is about 623.1135781218.

The spelling of 241936640 in words is "two hundred forty-one million, nine hundred thirty-six thousand, six hundred forty".