244485945 has 72 divisors (see below), whose sum is σ = 483345408. Its totient is φ = 118467360.

The previous prime is 244485907. The next prime is 244485947. The reversal of 244485945 is 549584442.

It is a happy number.

It is not a de Polignac number, because 244485945 - 2⁹ = 244485433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 244485945.

It is not an unprimeable number, because it can be changed into a prime (244485947) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 146184 + ... + 147846.

Almost surely, 2^244485945 is an apocalyptic number.

It is an amenable number.

244485945 is a deficient number, since it is larger than the sum of its proper divisors (238859463).

244485945 is a wasteful number, since it uses less digits than its factorization.

244485945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705 (or 1682 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 244485945 is about 15636.0463353112. The cubic root of 244485945 is about 625.2945342442.

The spelling of 244485945 in words is "two hundred forty-four million, four hundred eighty-five thousand, nine hundred forty-five".