1244808916 has 12 divisors (see below), whose sum is σ = 2345986132. Its totient is φ = 574527168.

The previous prime is 1244808899. The next prime is 1244808923. The reversal of 1244808916 is 6198084421.

It can be written as a sum of positive squares in 2 ways, for example, as 510940816 + 733868100 = 22604^2 + 27090^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 11969265 + ... + 11969368.

Almost surely, 2^1244808916 is an apocalyptic number.

It is an amenable number.

1244808916 is a deficient number, since it is larger than the sum of its proper divisors (1101177216).

1244808916 is a wasteful number, since it uses less digits than its factorization.

1244808916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23938650 (or 23938648 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1244808916 is about 35281.8496680659. The cubic root of 1244808916 is about 1075.7240958227.

The spelling of 1244808916 in words is "one billion, two hundred forty-four million, eight hundred eight thousand, nine hundred sixteen".