1244344641 has 8 divisors (see below), whose sum is σ = 1681854240. Its totient is φ = 818199072.

The previous prime is 1244344639. The next prime is 1244344649. The reversal of 1244344641 is 1464434421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1244344641 - 2¹ = 1244344639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244344649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840751 + ... + 2841188.

It is an arithmetic number, because the mean of its divisors is an integer number (210231780).

Almost surely, 2^1244344641 is an apocalyptic number.

It is an amenable number.

1244344641 is a deficient number, since it is larger than the sum of its proper divisors (437509599).

1244344641 is an equidigital number, since it uses as much as digits as its factorization.

1244344641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682015.

The product of its digits is 36864, while the sum is 33.

The square root of 1244344641 is about 35275.2695383040. The cubic root of 1244344641 is about 1075.5903419852.

It can be divided in two parts, 12 and 44344641, that added together give a triangular number (44344653 = T₉₄₁₇).

The spelling of 1244344641 in words is "one billion, two hundred forty-four million, three hundred forty-four thousand, six hundred forty-one".