244225261 has 16 divisors (see below), whose sum is σ = 288448000. Its totient is φ = 206663184.

The previous prime is 244225237. The next prime is 244225277. The reversal of 244225261 is 162522442.

It is a de Polignac number, because none of the positive numbers 2^k-244225261 is a prime.

It is a super-2 number, since 2×244225261² = 119291956221036242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244222261) 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, 22591 + ... + 31603.

It is an arithmetic number, because the mean of its divisors is an integer number (18028000).

Almost surely, 2^244225261 is an apocalyptic number.

It is an amenable number.

244225261 is a deficient number, since it is larger than the sum of its proper divisors (44222739).

244225261 is an frugal number, since it uses more digits than its factorization.

244225261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9113 (or 9099 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 244225261 is about 15627.7081173152. The cubic root of 244225261 is about 625.0722143758.

The spelling of 244225261 in words is "two hundred forty-four million, two hundred twenty-five thousand, two hundred sixty-one".