244020820 has 12 divisors (see below), whose sum is σ = 512443764. Its totient is φ = 97608320.

The previous prime is 244020811. The next prime is 244020827. The reversal of 244020820 is 28020442.

It can be written as a sum of positive squares in 2 ways, for example, as 165945924 + 78074896 = 12882^2 + 8836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 244020791 and 244020800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244020827) 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, 6100501 + ... + 6100540.

It is an arithmetic number, because the mean of its divisors is an integer number (42703647).

Almost surely, 2^244020820 is an apocalyptic number.

244020820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244020820 is an abundant number, since it is smaller than the sum of its proper divisors (268422944).

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

244020820 is a wasteful number, since it uses less digits than its factorization.

244020820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12201050 (or 12201048 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 244020820 is about 15621.1657695577. The cubic root of 244020820 is about 624.8977496727.

The spelling of 244020820 in words is "two hundred forty-four million, twenty thousand, eight hundred twenty".