240644644 has 12 divisors (see below), whose sum is σ = 421483804. Its totient is φ = 120220704.

The previous prime is 240644629. The next prime is 240644683. The reversal of 240644644 is 446446042.

It can be written as a sum of positive squares in 2 ways, for example, as 10758400 + 229886244 = 3280^2 + 15162^2 .

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, 19947 + ... + 29650.

Almost surely, 2^240644644 is an apocalyptic number.

It is an amenable number.

240644644 is a deficient number, since it is larger than the sum of its proper divisors (180839160).

240644644 is a wasteful number, since it uses less digits than its factorization.

240644644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50814 (or 50812 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The square root of 240644644 is about 15512.7252280184. The cubic root of 240644644 is about 622.0024089815.

The spelling of 240644644 in words is "two hundred forty million, six hundred forty-four thousand, six hundred forty-four".