122456238 has 32 divisors (see below), whose sum is σ = 248447520. Its totient is φ = 40233600.

The previous prime is 122456233. The next prime is 122456239. The reversal of 122456238 is 832654221.

It is a super-2 number, since 2×122456238² = 29991060450225288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122456199 and 122456208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122456233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240328 + ... + 240836.

It is an arithmetic number, because the mean of its divisors is an integer number (7763985).

Almost surely, 2^122456238 is an apocalyptic number.

122456238 is an abundant number, since it is smaller than the sum of its proper divisors (125991282).

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

122456238 is a wasteful number, since it uses less digits than its factorization.

122456238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012.

The product of its digits is 23040, while the sum is 33.

The square root of 122456238 is about 11065.9946683522. The cubic root of 122456238 is about 496.5850466200.

The spelling of 122456238 in words is "one hundred twenty-two million, four hundred fifty-six thousand, two hundred thirty-eight".