44609 has 4 divisors (see below), whose sum is σ = 46080. Its totient is φ = 43140.

The previous prime is 44587. The next prime is 44617. The reversal of 44609 is 90644.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44609 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 44609.

It is not an unprimeable number, because it can be changed into a prime (44699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (11520).

2⁴⁴⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

44609 is a deficient number, since it is larger than the sum of its proper divisors (1471).

44609 is a wasteful number, since it uses less digits than its factorization.

44609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 44609 is about 211.2084278621. The cubic root of 44609 is about 35.4656150560.

It can be divided in two parts, 44 and 609, that multiplied together give a triangular number (26796 = T₂₃₁).

The spelling of 44609 in words is "forty-four thousand, six hundred nine".