123247680 has 224 divisors, whose sum is σ = 427939200. Its totient is φ = 29933568.

The previous prime is 123247673. The next prime is 123247711. The reversal of 123247680 is 86742321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 528844 + ... + 529076.

Almost surely, 2^123247680 is an apocalyptic number.

123247680 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 123247680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213969600).

123247680 is an abundant number, since it is smaller than the sum of its proper divisors (304691520).

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

123247680 is a wasteful number, since it uses less digits than its factorization.

123247680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 123247680 is about 11101.6971675506. The cubic root of 123247680 is about 497.6525697226.

The spelling of 123247680 in words is "one hundred twenty-three million, two hundred forty-seven thousand, six hundred eighty".