44404421 has 4 divisors (see below), whose sum is σ = 46335072. Its totient is φ = 42473772.

The previous prime is 44404417. The next prime is 44404427. The reversal of 44404421 is 12440444.

44404421 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 44404421 - 2² = 44404417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1930627 = 44404421 / (4 + 4 + 4 + 0 + 4 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44404427) 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, 965291 + ... + 965336.

It is an arithmetic number, because the mean of its divisors is an integer number (11583768).

Almost surely, 2^44404421 is an apocalyptic number.

It is an amenable number.

44404421 is a deficient number, since it is larger than the sum of its proper divisors (1930651).

44404421 is a wasteful number, since it uses less digits than its factorization.

44404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930650.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 44404421 is about 6663.6642322374. The cubic root of 44404421 is about 354.1131629872.

Adding to 44404421 its reverse (12440444), we get a palindrome (56844865).

The spelling of 44404421 in words is "forty-four million, four hundred four thousand, four hundred twenty-one".