4440134123421 has 8 divisors (see below), whose sum is σ = 5920297385184. Its totient is φ = 2960030138640.

The previous prime is 4440134123377. The next prime is 4440134123431. The reversal of 4440134123421 is 1243214310444.

It is a happy number.

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

It is not a de Polignac number, because 4440134123421 - 2¹¹ = 4440134121373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440134123431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14644171 + ... + 14944296.

It is an arithmetic number, because the mean of its divisors is an integer number (740037173148).

Almost surely, 2^{4440134123421} is an apocalyptic number.

It is an amenable number.

4440134123421 is a deficient number, since it is larger than the sum of its proper divisors (1480163261763).

4440134123421 is a wasteful number, since it uses less digits than its factorization.

4440134123421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29638491.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 4440134123421 its reverse (1243214310444), we get a palindrome (5683348433865).

The spelling of 4440134123421 in words is "four trillion, four hundred forty billion, one hundred thirty-four million, one hundred twenty-three thousand, four hundred twenty-one".