1244193048 has 128 divisors (see below), whose sum is σ = 3998976000. Its totient is φ = 355448736.

The previous prime is 1244193007. The next prime is 1244193077. The reversal of 1244193048 is 8403914421.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117393 + ... + 127551.

It is an arithmetic number, because the mean of its divisors is an integer number (31242000).

Almost surely, 2^1244193048 is an apocalyptic number.

1244193048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244193048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999488000).

1244193048 is an abundant number, since it is smaller than the sum of its proper divisors (2754782952).

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

1244193048 is an equidigital number, since it uses as much as digits as its factorization.

1244193048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193 (or 10171 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1244193048 is about 35273.1207578802. The cubic root of 1244193048 is about 1075.5466620745.

The spelling of 1244193048 in words is "one billion, two hundred forty-four million, one hundred ninety-three thousand, forty-eight".