1244769666 has 32 divisors (see below), whose sum is σ = 2855712768. Its totient is φ = 354332880.

The previous prime is 1244769661. The next prime is 1244769671. The reversal of 1244769666 is 6669674421.

It is an interprime number because it is at equal distance from previous prime (1244769661) and next prime (1244769671).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1244769661) 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 15 ways as a sum of consecutive naturals, for example, 43300 + ... + 66063.

It is an arithmetic number, because the mean of its divisors is an integer number (89241024).

Almost surely, 2^1244769666 is an apocalyptic number.

1244769666 is an abundant number, since it is smaller than the sum of its proper divisors (1610943102).

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

1244769666 is a wasteful number, since it uses less digits than its factorization.

1244769666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109646.

The product of its digits is 2612736, while the sum is 51.

The square root of 1244769666 is about 35281.2934286712. The cubic root of 1244769666 is about 1075.7127895052.

The spelling of 1244769666 in words is "one billion, two hundred forty-four million, seven hundred sixty-nine thousand, six hundred sixty-six".