241721040 has 320 divisors, whose sum is σ = 885657600. Its totient is φ = 53913600.

The previous prime is 241721033. The next prime is 241721083. The reversal of 241721040 is 40127142.

It is a happy number.

241721040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×241721040² = 116858122357363200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 241720998 and 241721016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3059721 + ... + 3059799.

It is an arithmetic number, because the mean of its divisors is an integer number (2767680).

Almost surely, 2^241721040 is an apocalyptic number.

241721040 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 241721040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442828800).

241721040 is an abundant number, since it is smaller than the sum of its proper divisors (643936560).

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

241721040 is a wasteful number, since it uses less digits than its factorization.

241721040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 241721040 is about 15547.3804867572. The cubic root of 241721040 is about 622.9284288012.

Adding to 241721040 its reverse (40127142), we get a palindrome (281848182).

The spelling of 241721040 in words is "two hundred forty-one million, seven hundred twenty-one thousand, forty".