1244404143 has 12 divisors (see below), whose sum is σ = 1819130040. Its totient is φ = 819607056.

The previous prime is 1244404127. The next prime is 1244404157. The reversal of 1244404143 is 3414044421.

1244404143 is a `hidden beast` number, since 1 + 244 + 4 + 0 + 414 + 3 = 666.

It is not a de Polignac number, because 1244404143 - 2⁴ = 1244404127 is a prime.

It is a super-2 number, since 2×1244404143² = 3097083342231128898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244404163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 832188 + ... + 833681.

It is an arithmetic number, because the mean of its divisors is an integer number (151594170).

Almost surely, 2^1244404143 is an apocalyptic number.

1244404143 is a deficient number, since it is larger than the sum of its proper divisors (574725897).

1244404143 is a wasteful number, since it uses less digits than its factorization.

1244404143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665958 (or 1665955 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1244404143 is about 35276.1129236201. The cubic root of 1244404143 is about 1075.6074858842.

Adding to 1244404143 its reverse (3414044421), we get a palindrome (4658448564).

The spelling of 1244404143 in words is "one billion, two hundred forty-four million, four hundred four thousand, one hundred forty-three".