1244960656 has 15 divisors (see below), whose sum is σ = 2412384753. Its totient is φ = 622409760.

The previous prime is 1244960641. The next prime is 1244960659. The reversal of 1244960656 is 6560694421.

The square root of 1244960656 is 35284.

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

It can be written as a sum of positive squares in only one way, i.e., 788711056 + 456249600 = 28084^2 + 21360^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244960659) 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 2 ways as a sum of consecutive naturals, for example, 136726 + ... + 145546.

Almost surely, 2^1244960656 is an apocalyptic number.

1244960656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1244960656 is the 35284-th square number.

It is an amenable number.

1244960656 is a deficient number, since it is larger than the sum of its proper divisors (1167424097).

1244960656 is an frugal number, since it uses more digits than its factorization.

1244960656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17650 (or 8823 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The cubic root of 1244960656 is about 1075.7678036668.

The spelling of 1244960656 in words is "one billion, two hundred forty-four million, nine hundred sixty thousand, six hundred fifty-six".