1244610666 has 48 divisors (see below), whose sum is σ = 2965906944. Its totient is φ = 374805792.

The previous prime is 1244610641. The next prime is 1244610667. The reversal of 1244610666 is 6660164421.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1244610666.

It is not an unprimeable number, because it can be changed into a prime (1244610667) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 45586 + ... + 67581.

It is an arithmetic number, because the mean of its divisors is an integer number (61789728).

Almost surely, 2^1244610666 is an apocalyptic number.

1244610666 is an abundant number, since it is smaller than the sum of its proper divisors (1721296278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244610666 is a wasteful number, since it uses less digits than its factorization.

1244610666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113235 (or 113232 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1244610666 is about 35279.0400379602. The cubic root of 1244610666 is about 1075.6669856853. Note that the first 3 decimals are identical.

The spelling of 1244610666 in words is "one billion, two hundred forty-four million, six hundred ten thousand, six hundred sixty-six".