1234444321 has 16 divisors (see below), whose sum is σ = 1365984000. Its totient is φ = 1106224000.

The previous prime is 1234444319. The next prime is 1234444327.

1234444321 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1234444321 - 2¹ = 1234444319 is a prime.

It is a super-3 number, since 3×1234444321³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1234444321.

It is not an unprimeable number, because it can be changed into a prime (1234444327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263205 + ... + 267853.

It is an arithmetic number, because the mean of its divisors is an integer number (85374000).

Almost surely, 2^1234444321 is an apocalyptic number.

1234444321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1234444321 is a deficient number, since it is larger than the sum of its proper divisors (131539679).

1234444321 is a wasteful number, since it uses less digits than its factorization.

1234444321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000.

The product of its digits is 9216, while the sum is 28.

The square root of 1234444321 is about 35134.6598247372. The cubic root of 1234444321 is about 1072.7301870793.

It can be divided in two parts, 123444 and 4321, that added together give a triangular number (127765 = T₅₀₅).

The spelling of 1234444321 in words is "one billion, two hundred thirty-four million, four hundred forty-four thousand, three hundred twenty-one".