123855588 has 96 divisors (see below), whose sum is σ = 333889920. Its totient is φ = 39674880.

The previous prime is 123855587. The next prime is 123855601. The reversal of 123855588 is 885558321.

123855588 is a `hidden beast` number, since 12 + 3 + 8 + 55 + 588 = 666.

It is not an unprimeable number, because it can be changed into a prime (123855581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367356 + ... + 367692.

It is an arithmetic number, because the mean of its divisors is an integer number (3478020).

Almost surely, 2^123855588 is an apocalyptic number.

123855588 is a gapful number since it is divisible by the number (18) 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 123855588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166944960).

123855588 is an abundant number, since it is smaller than the sum of its proper divisors (210034332).

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

123855588 is a wasteful number, since it uses less digits than its factorization.

123855588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 466 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 123855588 is about 11129.0425464188. The cubic root of 123855588 is about 498.4694368670.

The spelling of 123855588 in words is "one hundred twenty-three million, eight hundred fifty-five thousand, five hundred eighty-eight".