241528720 has 20 divisors (see below), whose sum is σ = 561554460. Its totient is φ = 96611456.

The previous prime is 241528709. The next prime is 241528747. The reversal of 241528720 is 27825142.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26378496 + 215150224 = 5136^2 + 14668^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×241528720² = 116672245169676800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509475 + ... + 1509634.

It is an arithmetic number, because the mean of its divisors is an integer number (28077723).

Almost surely, 2^241528720 is an apocalyptic number.

241528720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

241528720 is an abundant number, since it is smaller than the sum of its proper divisors (320025740).

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

241528720 is a wasteful number, since it uses less digits than its factorization.

241528720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019122 (or 3019116 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 241528720 is about 15541.1942913021. The cubic root of 241528720 is about 622.7631785579.

The spelling of 241528720 in words is "two hundred forty-one million, five hundred twenty-eight thousand, seven hundred twenty".