44921489 has 4 divisors (see below), whose sum is σ = 45341424. Its totient is φ = 44501556.

The previous prime is 44921473. The next prime is 44921501. The reversal of 44921489 is 98412944.

44921489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 44921489 - 2⁴ = 44921473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44921389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209807 + ... + 210020.

It is an arithmetic number, because the mean of its divisors is an integer number (11335356).

Almost surely, 2^44921489 is an apocalyptic number.

It is an amenable number.

44921489 is a deficient number, since it is larger than the sum of its proper divisors (419935).

44921489 is a wasteful number, since it uses less digits than its factorization.

44921489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419934.

The product of its digits is 82944, while the sum is 41.

The square root of 44921489 is about 6702.3495134169. The cubic root of 44921489 is about 355.4823542917.

The spelling of 44921489 in words is "forty-four million, nine hundred twenty-one thousand, four hundred eighty-nine".