1244375424 has 96 divisors (see below), whose sum is σ = 3587890800. Its totient is φ = 413973504.

The previous prime is 1244375423. The next prime is 1244375441. The reversal of 1244375424 is 4245734421.

1244375424 is a `hidden beast` number, since 1 + 244 + 375 + 42 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244375423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 954357 + ... + 955659.

Almost surely, 2^1244375424 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 1244375424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1793945400).

1244375424 is an abundant number, since it is smaller than the sum of its proper divisors (2343515376).

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

1244375424 is a wasteful number, since it uses less digits than its factorization.

1244375424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152 (or 2137 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 1244375424 is about 35275.7058611164. The cubic root of 1244375424 is about 1075.5992113459.

The spelling of 1244375424 in words is "one billion, two hundred forty-four million, three hundred seventy-five thousand, four hundred twenty-four".