244890 has 32 divisors (see below), whose sum is σ = 653760. Its totient is φ = 65232.

The previous prime is 244889. The next prime is 244897. The reversal of 244890 is 98442.

It is a super-2 number, since 2×244890² = 119942224200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (244897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184 + ... + 723.

It is an arithmetic number, because the mean of its divisors is an integer number (20430).

2²⁴⁴⁸⁹⁰ is an apocalyptic number.

244890 is an abundant number, since it is smaller than the sum of its proper divisors (408870).

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

244890 is a wasteful number, since it uses less digits than its factorization.

244890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 244890 is about 494.8636175756. The cubic root of 244890 is about 62.5638813512.

The spelling of 244890 in words is "two hundred forty-four thousand, eight hundred ninety".