1244505252 has 24 divisors (see below), whose sum is σ = 3030100416. Its totient is φ = 396798688.

The previous prime is 1244505239. The next prime is 1244505271. The reversal of 1244505252 is 2525054421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2254263 + ... + 2254814.

It is an arithmetic number, because the mean of its divisors is an integer number (126254184).

Almost surely, 2^1244505252 is an apocalyptic number.

1244505252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1244505252 is an abundant number, since it is smaller than the sum of its proper divisors (1785595164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244505252 is a wasteful number, since it uses less digits than its factorization.

1244505252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509107 (or 4509105 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1244505252 is about 35277.5460030881. The cubic root of 1244505252 is about 1075.6366164665.

Adding to 1244505252 its reverse (2525054421), we get a palindrome (3769559673).

The spelling of 1244505252 in words is "one billion, two hundred forty-four million, five hundred five thousand, two hundred fifty-two".