623238 has 64 divisors (see below), whose sum is σ = 1658880. Its totient is φ = 151200.

The previous prime is 623221. The next prime is 623261. The reversal of 623238 is 832326.

It is a d-powerful number, because it can be written as 6⁷ + 2⁷ + 2¹⁷ + 3⁷ + 3¹¹ + 8⁵ .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8743 + ... + 8813.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2⁶²³²³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829440).

623238 is an abundant number, since it is smaller than the sum of its proper divisors (1035642).

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

623238 is a wasteful number, since it uses less digits than its factorization.

623238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113.

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

The square root of 623238 is about 789.4542418659. The cubic root of 623238 is about 85.4183756417.

It can be divided in two parts, 623 and 238, that added together give a triangular number (861 = T₄₁).

The spelling of 623238 in words is "six hundred twenty-three thousand, two hundred thirty-eight".