123819800 has 48 divisors (see below), whose sum is σ = 310032240. Its totient is φ = 45717120.

The previous prime is 123819799. The next prime is 123819803. The reversal of 123819800 is 8918321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123819803) 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 11 ways as a sum of consecutive naturals, for example, 21212 + ... + 26411.

It is an arithmetic number, because the mean of its divisors is an integer number (6459005).

Almost surely, 2^123819800 is an apocalyptic number.

123819800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123819800 is an abundant number, since it is smaller than the sum of its proper divisors (186212440).

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

123819800 is a wasteful number, since it uses less digits than its factorization.

123819800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47652 (or 47643 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 123819800 is about 11127.4345650738. The cubic root of 123819800 is about 498.4214214243.

The spelling of 123819800 in words is "one hundred twenty-three million, eight hundred nineteen thousand, eight hundred".