1123444449 has 6 divisors (see below), whose sum is σ = 1622753106. Its totient is φ = 748962960.

The previous prime is 1123444423. The next prime is 1123444451. The reversal of 1123444449 is 9444443211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 769063824 + 354380625 = 27732^2 + 18825^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1123444449 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1123444489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62413572 + ... + 62413589.

It is an arithmetic number, because the mean of its divisors is an integer number (270458851).

Almost surely, 2^1123444449 is an apocalyptic number.

It is an amenable number.

1123444449 is a deficient number, since it is larger than the sum of its proper divisors (499308657).

1123444449 is a wasteful number, since it uses less digits than its factorization.

1123444449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124827167 (or 124827164 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 1123444449 is about 33517.8228559076. The cubic root of 1123444449 is about 1039.5623309402.

The spelling of 1123444449 in words is "one billion, one hundred twenty-three million, four hundred forty-four thousand, four hundred forty-nine".