244255220 has 48 divisors (see below), whose sum is σ = 560903616. Its totient is φ = 88608000.

The previous prime is 244255211. The next prime is 244255229. The reversal of 244255220 is 22552442.

244255220 = T₃₈₃₁ + T₃₈₃₂ + ... + T₃₈₆₃.

It is an interprime number because it is at equal distance from previous prime (244255211) and next prime (244255229).

It is a super-2 number, since 2×244255220² = 119321224994496800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 244255220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244255229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113555 + ... + 115685.

It is an arithmetic number, because the mean of its divisors is an integer number (11685492).

Almost surely, 2^244255220 is an apocalyptic number.

244255220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244255220 is an abundant number, since it is smaller than the sum of its proper divisors (316648396).

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

244255220 is a wasteful number, since it uses less digits than its factorization.

244255220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 244255220 is about 15628.6666097911. Note that the first 4 decimals coincide. The cubic root of 244255220 is about 625.0977724374.

The spelling of 244255220 in words is "two hundred forty-four million, two hundred fifty-five thousand, two hundred twenty".