244223540 has 48 divisors (see below), whose sum is σ = 563963904. Its totient is φ = 88099200.

The previous prime is 244223537. The next prime is 244223557. The reversal of 244223540 is 45322442.

It is a happy number.

244223540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23570 + ... + 32310.

It is an arithmetic number, because the mean of its divisors is an integer number (11749248).

Almost surely, 2^244223540 is an apocalyptic number.

244223540 is a gapful number since it is divisible by the number (20) 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 244223540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281981952).

244223540 is an abundant number, since it is smaller than the sum of its proper divisors (319740364).

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

244223540 is a wasteful number, since it uses less digits than its factorization.

244223540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8888 (or 8886 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 244223540 is about 15627.6530547616. The cubic root of 244223540 is about 625.0707461250.

Adding to 244223540 its reverse (45322442), we get a palindrome (289545982).

The spelling of 244223540 in words is "two hundred forty-four million, two hundred twenty-three thousand, five hundred forty".