123606720 has 168 divisors, whose sum is σ = 429365664. Its totient is φ = 32636928.

The previous prime is 123606697. The next prime is 123606773. The reversal of 123606720 is 27606321.

It is a happy number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 480832 + ... + 481088.

It is an arithmetic number, because the mean of its divisors is an integer number (2555748).

Almost surely, 2^123606720 is an apocalyptic number.

123606720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123606720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214682832).

123606720 is an abundant number, since it is smaller than the sum of its proper divisors (305758944).

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

123606720 is a wasteful number, since it uses less digits than its factorization.

123606720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 123606720 is about 11117.8559084025. The cubic root of 123606720 is about 498.1353481244.

The spelling of 123606720 in words is "one hundred twenty-three million, six hundred six thousand, seven hundred twenty".