623232 has 48 divisors (see below), whose sum is σ = 1796730. Its totient is φ = 207360.

The previous prime is 623221. The next prime is 623261. The reversal of 623232 is 232326.

It can be written as a sum of positive squares in only one way, i.e., 553536 + 69696 = 744^2 + 264^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 623232.

It is an unprimeable number.

623232 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 882 + ... + 1422.

2⁶²³²³² 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 623232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898365).

623232 is an abundant number, since it is smaller than the sum of its proper divisors (1173498).

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

623232 is a wasteful number, since it uses less digits than its factorization.

623232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 546 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 623232 is about 789.4504417631. The cubic root of 623232 is about 85.4181015292.

Adding to 623232 its reverse (232326), we get a palindrome (855558).

The spelling of 623232 in words is "six hundred twenty-three thousand, two hundred thirty-two".