122398 has 8 divisors (see below), whose sum is σ = 193320. Its totient is φ = 57960.

The previous prime is 122393. The next prime is 122399. The reversal of 122398 is 893221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122393) 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 3 ways as a sum of consecutive naturals, for example, 1573 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (24165).

2¹²²³⁹⁸ is an apocalyptic number.

122398 is a deficient number, since it is larger than the sum of its proper divisors (70922).

122398 is a wasteful number, since it uses less digits than its factorization.

122398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242.

The product of its digits is 864, while the sum is 25.

The square root of 122398 is about 349.8542553693. The cubic root of 122398 is about 49.6506311810.

The spelling of 122398 in words is "one hundred twenty-two thousand, three hundred ninety-eight".