44981 has 4 divisors (see below), whose sum is σ = 46464. Its totient is φ = 43500.

The previous prime is 44971. The next prime is 44983. The reversal of 44981 is 18944.

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 not a de Polignac number, because 44981 - 2⁶ = 44917 is a prime.

It is a super-2 number, since 2×44981² = 4046580722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 44981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44983) 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 3 ways as a sum of consecutive naturals, for example, 695 + ... + 756.

It is an arithmetic number, because the mean of its divisors is an integer number (11616).

2⁴⁴⁹⁸¹ is an apocalyptic number.

It is an amenable number.

44981 is a deficient number, since it is larger than the sum of its proper divisors (1483).

44981 is a wasteful number, since it uses less digits than its factorization.

44981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482.

The product of its digits is 1152, while the sum is 26.

The square root of 44981 is about 212.0872461984. The cubic root of 44981 is about 35.5639263422.

The spelling of 44981 in words is "forty-four thousand, nine hundred eighty-one".