44644993 has 4 divisors (see below), whose sum is σ = 44966320. Its totient is φ = 44323668.

The previous prime is 44644987. The next prime is 44644997. The reversal of 44644993 is 39944644.

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-44644993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44644997) 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, 160455 + ... + 160732.

It is an arithmetic number, because the mean of its divisors is an integer number (11241580).

Almost surely, 2^44644993 is an apocalyptic number.

It is an amenable number.

44644993 is a deficient number, since it is larger than the sum of its proper divisors (321327).

44644993 is a wasteful number, since it uses less digits than its factorization.

44644993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321326.

The product of its digits is 373248, while the sum is 43.

The square root of 44644993 is about 6681.6908788120. The cubic root of 44644993 is about 354.7515102946.

The spelling of 44644993 in words is "forty-four million, six hundred forty-four thousand, nine hundred ninety-three".