123489426 has 8 divisors (see below), whose sum is σ = 246978864. Its totient is φ = 41163140.

The previous prime is 123489397. The next prime is 123489427. The reversal of 123489426 is 624984321.

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

123489426 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (123489427) 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 3 ways as a sum of consecutive naturals, for example, 10290780 + ... + 10290791.

It is an arithmetic number, because the mean of its divisors is an integer number (30872358).

Almost surely, 2^123489426 is an apocalyptic number.

123489426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123489426 is a wasteful number, since it uses less digits than its factorization.

123489426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20581576.

The product of its digits is 82944, while the sum is 39.

The square root of 123489426 is about 11112.5796285111. The cubic root of 123489426 is about 497.9777332345.

The spelling of 123489426 in words is "one hundred twenty-three million, four hundred eighty-nine thousand, four hundred twenty-six".