1244106641 has 8 divisors (see below), whose sum is σ = 1295649000. Its totient is φ = 1193140480.

The previous prime is 1244106637. The next prime is 1244106649. The reversal of 1244106641 is 1466014421.

It can be written as a sum of positive squares in 4 ways, for example, as 321162241 + 922944400 = 17921^2 + 30380^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1244106641 - 2² = 1244106637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244106649) 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, 139640 + ... + 148281.

It is an arithmetic number, because the mean of its divisors is an integer number (161956125).

Almost surely, 2^1244106641 is an apocalyptic number.

It is an amenable number.

1244106641 is a deficient number, since it is larger than the sum of its proper divisors (51542359).

1244106641 is a wasteful number, since it uses less digits than its factorization.

1244106641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288099.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1244106641 is about 35271.8959087827. The cubic root of 1244106641 is about 1075.5217632289.

The spelling of 1244106641 in words is "one billion, two hundred forty-four million, one hundred six thousand, six hundred forty-one".