123443232 has 72 divisors (see below), whose sum is σ = 356208048. Its totient is φ = 37403520.

The previous prime is 123443213. The next prime is 123443237. The reversal of 123443232 is 232344321.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is not an unprimeable number, because it can be changed into a prime (123443237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6303 + ... + 16929.

It is an arithmetic number, because the mean of its divisors is an integer number (4947334).

Almost surely, 2^123443232 is an apocalyptic number.

123443232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123443232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178104024).

123443232 is an abundant number, since it is smaller than the sum of its proper divisors (232764816).

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

123443232 is a wasteful number, since it uses less digits than its factorization.

123443232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10662 (or 10643 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 123443232 is about 11110.5009788038. The cubic root of 123443232 is about 497.9156322296.

Adding to 123443232 its reverse (232344321), we get a palindrome (355787553).

It can be divided in two parts, 12344 and 3232, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 123443232 in words is "one hundred twenty-three million, four hundred forty-three thousand, two hundred thirty-two".