123428226 has 32 divisors (see below), whose sum is σ = 256417920. Its totient is φ = 39574656.

The previous prime is 123428213. The next prime is 123428231. The reversal of 123428226 is 622824321.

It is a junction number, because it is equal to n+sod(n) for n = 123428193 and 123428202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16635 + ... + 22881.

It is an arithmetic number, because the mean of its divisors is an integer number (8013060).

Almost surely, 2^123428226 is an apocalyptic number.

123428226 is an abundant number, since it is smaller than the sum of its proper divisors (132989694).

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

123428226 is a wasteful number, since it uses less digits than its factorization.

123428226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378.

The product of its digits is 9216, while the sum is 30.

The square root of 123428226 is about 11109.8256511972. The cubic root of 123428226 is about 497.8954555470.

The spelling of 123428226 in words is "one hundred twenty-three million, four hundred twenty-eight thousand, two hundred twenty-six".