1232223444 has 72 divisors (see below), whose sum is σ = 3320389800. Its totient is φ = 383956992.

The previous prime is 1232223431. The next prime is 1232223457. The reversal of 1232223444 is 4443222321.

It is an interprime number because it is at equal distance from previous prime (1232223431) and next prime (1232223457).

It can be written as a sum of positive squares in 4 ways, for example, as 134096400 + 1098127044 = 11580^2 + 33138^2 .

It is a super-2 number, since 2×1232223444² = 3036749231886442272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84432 + ... + 97944.

It is an arithmetic number, because the mean of its divisors is an integer number (46116525).

Almost surely, 2^1232223444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232223444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1660194900).

1232223444 is an abundant number, since it is smaller than the sum of its proper divisors (2088166356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232223444 is a wasteful number, since it uses less digits than its factorization.

1232223444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13689 (or 13684 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 1232223444 is about 35103.0403811408. The cubic root of 1232223444 is about 1072.0864880191.

Adding to 1232223444 its reverse (4443222321), we get a palindrome (5675445765).

It can be divided in two parts, 1232 and 223444, that added together give a square (224676 = 474²).

The spelling of 1232223444 in words is "one billion, two hundred thirty-two million, two hundred twenty-three thousand, four hundred forty-four".