1252211444 has 12 divisors (see below), whose sum is σ = 2390585568. Its totient is φ = 569187000.

The previous prime is 1252211437. The next prime is 1252211507. The reversal of 1252211444 is 4441122521.

It is a congruent number.

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, 14229632 + ... + 14229719.

It is an arithmetic number, because the mean of its divisors is an integer number (199215464).

Almost surely, 2^1252211444 is an apocalyptic number.

It is an amenable number.

1252211444 is a deficient number, since it is larger than the sum of its proper divisors (1138374124).

1252211444 is a wasteful number, since it uses less digits than its factorization.

1252211444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28459366 (or 28459364 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1252211444 is about 35386.5997801428. The cubic root of 1252211444 is about 1077.8522256514.

Adding to 1252211444 its reverse (4441122521), we get a palindrome (5693333965).

The spelling of 1252211444 in words is "one billion, two hundred fifty-two million, two hundred eleven thousand, four hundred forty-four".