123618880 has 224 divisors, whose sum is σ = 381853440. Its totient is φ = 36986880.

The previous prime is 123618877. The next prime is 123618899. The reversal of 123618880 is 88816321.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 714474 + ... + 714646.

Almost surely, 2^123618880 is an apocalyptic number.

123618880 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 123618880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190926720).

123618880 is an abundant number, since it is smaller than the sum of its proper divisors (258234560).

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

123618880 is a wasteful number, since it uses less digits than its factorization.

123618880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 123618880 is about 11118.4027629871. The cubic root of 123618880 is about 498.1516825309.

The spelling of 123618880 in words is "one hundred twenty-three million, six hundred eighteen thousand, eight hundred eighty".