1234448321 has 4 divisors (see below), whose sum is σ = 1237622100. Its totient is φ = 1231274544.

The previous prime is 1234448309. The next prime is 1234448329. The reversal of 1234448321 is 1238444321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1238444321 = 8933 ⋅138637.

It can be written as a sum of positive squares in 2 ways, for example, as 698016400 + 536431921 = 26420^2 + 23161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234448321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234448329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586306 + ... + 1587083.

It is an arithmetic number, because the mean of its divisors is an integer number (309405525).

Almost surely, 2^1234448321 is an apocalyptic number.

It is an amenable number.

1234448321 is a deficient number, since it is larger than the sum of its proper divisors (3173779).

1234448321 is an equidigital number, since it uses as much as digits as its factorization.

1234448321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173778.

The product of its digits is 18432, while the sum is 32.

The square root of 1234448321 is about 35134.7167485380. The cubic root of 1234448321 is about 1072.7313457427.

It can be divided in two parts, 123 and 4448321, that added together give a palindrome (4448444).

The spelling of 1234448321 in words is "one billion, two hundred thirty-four million, four hundred forty-eight thousand, three hundred twenty-one".