244440040 has 32 divisors (see below), whose sum is σ = 592298280. Its totient is φ = 90254592.

The previous prime is 244440037. The next prime is 244440061. The reversal of 244440040 is 40044442.

It can be written as a sum of positive squares in 4 ways, for example, as 153313924 + 91126116 = 12382^2 + 9546^2 .

It is a junction number, because it is equal to n+sod(n) for n = 244439993 and 244440020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234519 + ... + 235558.

Almost surely, 2^244440040 is an apocalyptic number.

244440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244440040 is an abundant number, since it is smaller than the sum of its proper divisors (347858240).

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

244440040 is a wasteful number, since it uses less digits than its factorization.

244440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470101 (or 470097 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 244440040 is about 15634.5783441703. The cubic root of 244440040 is about 625.2553964221.

Adding to 244440040 its reverse (40044442), we get a palindrome (284484482).

The spelling of 244440040 in words is "two hundred forty-four million, four hundred forty thousand, forty".