245044 has 6 divisors (see below), whose sum is σ = 428834. Its totient is φ = 122520.

The previous prime is 245039. The next prime is 245071. The reversal of 245044 is 440542.

245044 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in only one way, i.e., 176400 + 68644 = 420^2 + 262^2 .

It is an Ulam number.

It is a nialpdrome in base 12 and base 14.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30627 + ... + 30634.

2²⁴⁵⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

245044 is a deficient number, since it is larger than the sum of its proper divisors (183790).

245044 is a wasteful number, since it uses less digits than its factorization.

245044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61265 (or 61263 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 245044 is about 495.0191915472. The cubic root of 245044 is about 62.5769931140.

Subtracting from 245044 its sum of digits (19), we obtain a square (245025 = 495²).

Adding to 245044 its reverse (440542), we get a palindrome (685586).

The spelling of 245044 in words is "two hundred forty-five thousand, forty-four".