1244475872 has 24 divisors (see below), whose sum is σ = 2451027600. Its totient is φ = 621992704.

The previous prime is 1244475853. The next prime is 1244475899. The reversal of 1244475872 is 2785744421.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 96629 + ... + 108747.

It is an arithmetic number, because the mean of its divisors is an integer number (102126150).

Almost surely, 2^1244475872 is an apocalyptic number.

It is an amenable number.

1244475872 is a deficient number, since it is larger than the sum of its proper divisors (1206551728).

1244475872 is a wasteful number, since it uses less digits than its factorization.

1244475872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15338 (or 15330 counting only the distinct ones).

The product of its digits is 501760, while the sum is 44.

The square root of 1244475872 is about 35277.1295884458. The cubic root of 1244475872 is about 1075.6281519375.

The spelling of 1244475872 in words is "one billion, two hundred forty-four million, four hundred seventy-five thousand, eight hundred seventy-two".