606240644 has 6 divisors (see below), whose sum is σ = 1060921134. Its totient is φ = 303120320.

The previous prime is 606240611. The next prime is 606240653. The reversal of 606240644 is 446042606.

It can be written as a sum of positive squares in only one way, i.e., 571783744 + 34456900 = 23912^2 + 5870^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 606240644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75780077 + ... + 75780084.

It is an arithmetic number, because the mean of its divisors is an integer number (176820189).

Almost surely, 2^606240644 is an apocalyptic number.

It is an amenable number.

606240644 is a deficient number, since it is larger than the sum of its proper divisors (454680490).

606240644 is a wasteful number, since it uses less digits than its factorization.

606240644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151560165 (or 151560163 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 606240644 is about 24621.9545121828. The cubic root of 606240644 is about 846.3467868706.

The spelling of 606240644 in words is "six hundred six million, two hundred forty thousand, six hundred forty-four".