240661828 has 24 divisors (see below), whose sum is σ = 483628320. Its totient is φ = 103633920.

The previous prime is 240661819. The next prime is 240661829. The reversal of 240661828 is 828166042.

It is not an unprimeable number, because it can be changed into a prime (240661829) 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, 143101 + ... + 144772.

It is an arithmetic number, because the mean of its divisors is an integer number (20151180).

Almost surely, 2^240661828 is an apocalyptic number.

It is an amenable number.

240661828 is an abundant number, since it is smaller than the sum of its proper divisors (242966492).

240661828 is a wasteful number, since it uses less digits than its factorization.

240661828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287907 (or 287905 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 240661828 is about 15513.2790859960. The cubic root of 240661828 is about 622.0172139858.

The spelling of 240661828 in words is "two hundred forty million, six hundred sixty-one thousand, eight hundred twenty-eight".