1244457032 has 64 divisors (see below), whose sum is σ = 2893968000. Its totient is φ = 488517120.

The previous prime is 1244457031. The next prime is 1244457043. The reversal of 1244457032 is 2307544421.

It is a self number, because there is not a number n which added to its sum of digits gives 1244457032.

It is not an unprimeable number, because it can be changed into a prime (1244457031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88844 + ... + 101892.

It is an arithmetic number, because the mean of its divisors is an integer number (45218250).

Almost surely, 2^1244457032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244457032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1446984000).

1244457032 is an abundant number, since it is smaller than the sum of its proper divisors (1649510968).

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

1244457032 is a wasteful number, since it uses less digits than its factorization.

1244457032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13206 (or 13202 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 1244457032 is about 35276.8625589068. The cubic root of 1244457032 is about 1075.6227239665.

The spelling of 1244457032 in words is "one billion, two hundred forty-four million, four hundred fifty-seven thousand, thirty-two".