44391443 has 4 divisors (see below), whose sum is σ = 44953440. Its totient is φ = 43829448.

The previous prime is 44391409. The next prime is 44391491. The reversal of 44391443 is 34419344.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44391443 - 2²² = 40197139 is a prime.

It is a super-3 number, since 3×44391443³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44391493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280880 + ... + 281037.

It is an arithmetic number, because the mean of its divisors is an integer number (11238360).

Almost surely, 2^44391443 is an apocalyptic number.

44391443 is a deficient number, since it is larger than the sum of its proper divisors (561997).

44391443 is an equidigital number, since it uses as much as digits as its factorization.

44391443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561996.

The product of its digits is 20736, while the sum is 32.

The square root of 44391443 is about 6662.6903725147. The cubic root of 44391443 is about 354.0786609540.

The spelling of 44391443 in words is "forty-four million, three hundred ninety-one thousand, four hundred forty-three".