244257220 has 12 divisors (see below), whose sum is σ = 512940204. Its totient is φ = 97702880.

The previous prime is 244257199. The next prime is 244257257. The reversal of 244257220 is 22752442.

It can be written as a sum of positive squares in 2 ways, for example, as 184905604 + 59351616 = 13598^2 + 7704^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6106411 + ... + 6106450.

It is an arithmetic number, because the mean of its divisors is an integer number (42745017).

Almost surely, 2^244257220 is an apocalyptic number.

244257220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244257220 is an abundant number, since it is smaller than the sum of its proper divisors (268682984).

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

244257220 is a wasteful number, since it uses less digits than its factorization.

244257220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212870 (or 12212868 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 244257220 is about 15628.7305946452. The cubic root of 244257220 is about 625.0994785656.

The spelling of 244257220 in words is "two hundred forty-four million, two hundred fifty-seven thousand, two hundred twenty".