1244402148 has 48 divisors (see below), whose sum is σ = 3185937216. Its totient is φ = 374904960.

The previous prime is 1244402141. The next prime is 1244402171. The reversal of 1244402148 is 8412044421.

It is not an unprimeable number, because it can be changed into a prime (1244402141) 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, 4411 + ... + 50082.

It is an arithmetic number, because the mean of its divisors is an integer number (66373692).

Almost surely, 2^1244402148 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 1244402148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592968608).

1244402148 is an abundant number, since it is smaller than the sum of its proper divisors (1941535068).

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

1244402148 is a wasteful number, since it uses less digits than its factorization.

1244402148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54684 (or 54682 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 1244402148 is about 35276.0846466838. The cubic root of 1244402148 is about 1075.6069110875.

Adding to 1244402148 its reverse (8412044421), we get a palindrome (9656446569).

The spelling of 1244402148 in words is "one billion, two hundred forty-four million, four hundred two thousand, one hundred forty-eight".