1244888164 has 24 divisors (see below), whose sum is σ = 2353567608. Its totient is φ = 572743680.

The previous prime is 1244888119. The next prime is 1244888261. The reversal of 1244888164 is 4618884421.

It can be written as a sum of positive squares in 4 ways, for example, as 209764 + 1244678400 = 458^2 + 35280^2 .

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, 21277 + ... + 54244.

It is an arithmetic number, because the mean of its divisors is an integer number (98065317).

Almost surely, 2^1244888164 is an apocalyptic number.

It is an amenable number.

1244888164 is a deficient number, since it is larger than the sum of its proper divisors (1108679444).

1244888164 is a wasteful number, since it uses less digits than its factorization.

1244888164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75855 (or 75853 counting only the distinct ones).

The product of its digits is 393216, while the sum is 46.

The square root of 1244888164 is about 35282.9727205631. The cubic root of 1244888164 is about 1075.7469232015.

The spelling of 1244888164 in words is "one billion, two hundred forty-four million, eight hundred eighty-eight thousand, one hundred sixty-four".