123326380 has 24 divisors (see below), whose sum is σ = 262109232. Its totient is φ = 48735552.

The previous prime is 123326369. The next prime is 123326393. The reversal of 123326380 is 83623321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35487 + ... + 38806.

It is an arithmetic number, because the mean of its divisors is an integer number (10921218).

Almost surely, 2^123326380 is an apocalyptic number.

123326380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123326380 is an abundant number, since it is smaller than the sum of its proper divisors (138782852).

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

123326380 is a wasteful number, since it uses less digits than its factorization.

123326380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74385 (or 74383 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 123326380 is about 11105.2411049918. The cubic root of 123326380 is about 497.7584727948.

The spelling of 123326380 in words is "one hundred twenty-three million, three hundred twenty-six thousand, three hundred eighty".