232638 has 32 divisors (see below), whose sum is σ = 552960. Its totient is φ = 63840.

The previous prime is 232633. The next prime is 232643. The reversal of 232638 is 836232.

It is an interprime number because it is at equal distance from previous prime (232633) and next prime (232643).

It is a d-powerful number, because it can be written as 2⁷ + 3 + 6⁶ + 2¹³ + 3¹¹ + 8³ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1123 + ... + 1313.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2²³²⁶³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276480).

232638 is an abundant number, since it is smaller than the sum of its proper divisors (320322).

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

232638 is a wasteful number, since it uses less digits than its factorization.

232638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232.

The product of its digits is 1728, while the sum is 24.

The square root of 232638 is about 482.3256161557. The cubic root of 232638 is about 61.5026107689.

It can be divided in two parts, 2326 and 38, that multiplied together give a palindrome (88388).

The spelling of 232638 in words is "two hundred thirty-two thousand, six hundred thirty-eight".