612238 has 16 divisors (see below), whose sum is σ = 1061424. Its totient is φ = 261760.

The previous prime is 612229. The next prime is 612259. The reversal of 612238 is 832216.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 445 + ... + 1192.

It is an arithmetic number, because the mean of its divisors is an integer number (66339).

2⁶¹²²³⁸ is an apocalyptic number.

612238 is a deficient number, since it is larger than the sum of its proper divisors (449186).

612238 is a wasteful number, since it uses less digits than its factorization.

612238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667.

The product of its digits is 576, while the sum is 22.

The square root of 612238 is about 782.4563885610. The cubic root of 612238 is about 84.9128518564.

Subtracting from 612238 its sum of digits (22), we obtain a palindrome (612216).

The spelling of 612238 in words is "six hundred twelve thousand, two hundred thirty-eight".