1066644244 has 24 divisors (see below), whose sum is σ = 1963735200. Its totient is φ = 506200800.

The previous prime is 1066644223. The next prime is 1066644269. The reversal of 1066644244 is 4424466601.

It is a super-2 number, since 2×1066644244² = 2275459886516663072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71082 + ... + 84769.

It is an arithmetic number, because the mean of its divisors is an integer number (81822300).

Almost surely, 2^1066644244 is an apocalyptic number.

It is an amenable number.

1066644244 is a deficient number, since it is larger than the sum of its proper divisors (897090956).

1066644244 is a wasteful number, since it uses less digits than its factorization.

1066644244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155943 (or 155941 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 1066644244 is about 32659.5199597300. The cubic root of 1066644244 is about 1021.7387503492.

The spelling of 1066644244 in words is "one billion, sixty-six million, six hundred forty-four thousand, two hundred forty-four".