1244466729 has 27 divisors (see below), whose sum is σ = 1977683799. Its totient is φ = 753516720.

The previous prime is 1244466721. The next prime is 1244466739. The reversal of 1244466729 is 9276644421.

The square root of 1244466729 is 35277.

It is a perfect power (a square), and thus also a powerful number.

1244466729 is a `hidden beast` number, since 124 + 446 + 67 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 581919129 + 662547600 = 24123^2 + 25740^2 .

It is not a de Polignac number, because 1244466729 - 2³ = 1244466721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244466721) 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 26 ways as a sum of consecutive naturals, for example, 1163607 + ... + 1164675.

Almost surely, 2^1244466729 is an apocalyptic number.

1244466729 is the 35277-th square number.

1244466729 is the 17639-th centered octagonal number.

It is an amenable number.

1244466729 is a deficient number, since it is larger than the sum of its proper divisors (733217070).

1244466729 is an equidigital number, since it uses as much as digits as its factorization.

1244466729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166 (or 1083 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The cubic root of 1244466729 is about 1075.6255177650.

The spelling of 1244466729 in words is "one billion, two hundred forty-four million, four hundred sixty-six thousand, seven hundred twenty-nine".