244273428 has 144 divisors (see below), whose sum is σ = 760972800. Its totient is φ = 67495680.

The previous prime is 244273423. The next prime is 244273483. The reversal of 244273428 is 824372442.

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

It is a junction number, because it is equal to n+sod(n) for n = 244273392 and 244273401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244273423) 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, 163308 + ... + 164796.

Almost surely, 2^244273428 is an apocalyptic number.

244273428 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 244273428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380486400).

244273428 is an abundant number, since it is smaller than the sum of its proper divisors (516699372).

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

244273428 is a wasteful number, since it uses less digits than its factorization.

244273428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547 (or 1532 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 244273428 is about 15629.2491182398. The cubic root of 244273428 is about 625.1133046847.

The spelling of 244273428 in words is "two hundred forty-four million, two hundred seventy-three thousand, four hundred twenty-eight".