1244444421 has 64 divisors (see below), whose sum is σ = 1985679360. Its totient is φ = 684610560.

The previous prime is 1244444413. The next prime is 1244444459.

1244444421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1244444421 - 2³ = 1244444413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244444471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3466240 + ... + 3466598.

It is an arithmetic number, because the mean of its divisors is an integer number (31026240).

Almost surely, 2^1244444421 is an apocalyptic number.

1244444421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1244444421 is a deficient number, since it is larger than the sum of its proper divisors (741234939).

1244444421 is a wasteful number, since it uses less digits than its factorization.

1244444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its digits is 16384, while the sum is 30.

The square root of 1244444421 is about 35276.6838152341. The cubic root of 1244444421 is about 1075.6190905951.

It can be divided in two parts, 12444 and 44421, that added together give a palindrome (56865).

The spelling of 1244444421 in words is "one billion, two hundred forty-four million, four hundred forty-four thousand, four hundred twenty-one".