244399428 has 144 divisors (see below), whose sum is σ = 773450496. Its totient is φ = 63348480.

The previous prime is 244399427. The next prime is 244399439. The reversal of 244399428 is 824993442.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (244399427) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 199225 + ... + 200447.

It is an arithmetic number, because the mean of its divisors is an integer number (5371184).

Almost surely, 2^244399428 is an apocalyptic number.

244399428 is a gapful number since it is divisible by the number (28) 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 244399428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386725248).

244399428 is an abundant number, since it is smaller than the sum of its proper divisors (529051068).

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

244399428 is a wasteful number, since it uses less digits than its factorization.

244399428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1309 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 244399428 is about 15633.2795023949. The cubic root of 244399428 is about 625.2207672364.

The spelling of 244399428 in words is "two hundred forty-four million, three hundred ninety-nine thousand, four hundred twenty-eight".