244645 has 8 divisors (see below), whose sum is σ = 296856. Its totient is φ = 193536.

The previous prime is 244639. The next prime is 244667. The reversal of 244645 is 546442.

It can be written as a sum of positive squares in 4 ways, for example, as 12321 + 232324 = 111^2 + 482^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244645 - 2³ = 244637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349 + ... + 781.

It is an arithmetic number, because the mean of its divisors is an integer number (37107).

2²⁴⁴⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

244645 is a deficient number, since it is larger than the sum of its proper divisors (52211).

244645 is a wasteful number, since it uses less digits than its factorization.

244645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its digits is 3840, while the sum is 25.

The square root of 244645 is about 494.6160126805. The cubic root of 244645 is about 62.5430103949.

The spelling of 244645 in words is "two hundred forty-four thousand, six hundred forty-five".