1244004421 has 8 divisors (see below), whose sum is σ = 1364942304. Its totient is φ = 1124374320.

The previous prime is 1244004409. The next prime is 1244004431.

1244004421 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1244004421 - 2¹¹ = 1244002373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1244004392 and 1244004401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244004401) 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, 324951 + ... + 328756.

It is an arithmetic number, because the mean of its divisors is an integer number (170617788).

Almost surely, 2^1244004421 is an apocalyptic number.

1244004421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1244004421 is a deficient number, since it is larger than the sum of its proper divisors (120937883).

1244004421 is a wasteful number, since it uses less digits than its factorization.

1244004421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653891.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1244004421 is about 35270.4468500188. The cubic root of 1244004421 is about 1075.4923062562.

It can be divided in two parts, 124400 and 4421, that added together give a palindrome (128821).

The spelling of 1244004421 in words is "one billion, two hundred forty-four million, four thousand, four hundred twenty-one".