44240421 has 8 divisors (see below), whose sum is σ = 60359200. Its totient is φ = 28807632.

The previous prime is 44240407. The next prime is 44240423. The reversal of 44240421 is 12404244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44240421 - 2⁵ = 44240389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44240423) 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 7 ways as a sum of consecutive naturals, for example, 171346 + ... + 171603.

It is an arithmetic number, because the mean of its divisors is an integer number (7544900).

Almost surely, 2^44240421 is an apocalyptic number.

It is an amenable number.

44240421 is a deficient number, since it is larger than the sum of its proper divisors (16118779).

44240421 is a wasteful number, since it uses less digits than its factorization.

44240421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342995.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 44240421 is about 6651.3473071251. The cubic root of 44240421 is about 353.6766734022.

Adding to 44240421 its reverse (12404244), we get a palindrome (56644665).

The spelling of 44240421 in words is "forty-four million, two hundred forty thousand, four hundred twenty-one".