1243411844 has 12 divisors (see below), whose sum is σ = 2176219164. Its totient is φ = 621634944.

The previous prime is 1243411831. The next prime is 1243411907. The reversal of 1243411844 is 4481143421.

It can be written as a sum of positive squares in 2 ways, for example, as 779526400 + 463885444 = 27920^2 + 21538^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1243411844.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53072 + ... + 72824.

It is an arithmetic number, because the mean of its divisors is an integer number (181351597).

Almost surely, 2^1243411844 is an apocalyptic number.

It is an amenable number.

1243411844 is a deficient number, since it is larger than the sum of its proper divisors (932807320).

1243411844 is a wasteful number, since it uses less digits than its factorization.

1243411844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35494 (or 35492 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 1243411844 is about 35262.0453745950. The cubic root of 1243411844 is about 1075.3215101792.

The spelling of 1243411844 in words is "one billion, two hundred forty-three million, four hundred eleven thousand, eight hundred forty-four".