240816644 has 6 divisors (see below), whose sum is σ = 421429134. Its totient is φ = 120408320.

The previous prime is 240816619. The next prime is 240816671. The reversal of 240816644 is 446618042.

It can be written as a sum of positive squares in only one way, i.e., 227406400 + 13410244 = 15080^2 + 3662^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30102077 + ... + 30102084.

It is an arithmetic number, because the mean of its divisors is an integer number (70238189).

Almost surely, 2^240816644 is an apocalyptic number.

It is an amenable number.

240816644 is a deficient number, since it is larger than the sum of its proper divisors (180612490).

240816644 is a wasteful number, since it uses less digits than its factorization.

240816644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60204165 (or 60204163 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 240816644 is about 15518.2680734675. The cubic root of 240816644 is about 622.1505651088.

The spelling of 240816644 in words is "two hundred forty million, eight hundred sixteen thousand, six hundred forty-four".