1244512252 has 24 divisors (see below), whose sum is σ = 2217262320. Its totient is φ = 611032320.

The previous prime is 1244512207. The next prime is 1244512271. The reversal of 1244512252 is 2522154421.

It is a happy number.

It is a super-2 number, since 2×1244512252² = 3097621490756223008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1244512252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261252 + ... + 265972.

It is an arithmetic number, because the mean of its divisors is an integer number (92385930).

Almost surely, 2^1244512252 is an apocalyptic number.

It is an amenable number.

1244512252 is a deficient number, since it is larger than the sum of its proper divisors (972750068).

1244512252 is a wasteful number, since it uses less digits than its factorization.

1244512252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5901 (or 5899 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 1244512252 is about 35277.6452161989. The cubic root of 1244512252 is about 1075.6386331828.

Adding to 1244512252 its reverse (2522154421), we get a palindrome (3766666673).

The spelling of 1244512252 in words is "one billion, two hundred forty-four million, five hundred twelve thousand, two hundred fifty-two".