244000040 has 16 divisors (see below), whose sum is σ = 549000180. Its totient is φ = 97600000.

The previous prime is 244000037. The next prime is 244000049. The reversal of 244000040 is 40000442.

It can be written as a sum of positive squares in 2 ways, for example, as 235131556 + 8868484 = 15334^2 + 2978^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243999979 and 244000024.

It is not an unprimeable number, because it can be changed into a prime (244000049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3049961 + ... + 3050040.

Almost surely, 2^244000040 is an apocalyptic number.

244000040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244000040 is an abundant number, since it is smaller than the sum of its proper divisors (305000140).

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

244000040 is a wasteful number, since it uses less digits than its factorization.

244000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100012 (or 6100008 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 244000040 is about 15620.5006321821. The cubic root of 244000040 is about 624.8800110991.

Adding to 244000040 its reverse (40000442), we get a palindrome (284000482).

The spelling of 244000040 in words is "two hundred forty-four million, forty", and thus it is an aban number.