122438 has 8 divisors (see below), whose sum is σ = 190080. Its totient is φ = 59080.

The previous prime is 122401. The next prime is 122443. The reversal of 122438 is 834221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (23760).

2¹²²⁴³⁸ is an apocalyptic number.

122438 is a deficient number, since it is larger than the sum of its proper divisors (67642).

122438 is a wasteful number, since it uses less digits than its factorization.

122438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142.

The product of its digits is 384, while the sum is 20.

The square root of 122438 is about 349.9114173616. The cubic root of 122438 is about 49.6560392458.

Adding to 122438 its reverse (834221), we get a palindrome (956659).

The spelling of 122438 in words is "one hundred twenty-two thousand, four hundred thirty-eight".