123680004 has 48 divisors (see below), whose sum is σ = 330357888. Its totient is φ = 35278848.

The previous prime is 123679991. The next prime is 123680009. The reversal of 123680004 is 400086321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123680009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96214 + ... + 97490.

It is an arithmetic number, because the mean of its divisors is an integer number (6882456).

Almost surely, 2^123680004 is an apocalyptic number.

123680004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123680004 is an abundant number, since it is smaller than the sum of its proper divisors (206677884).

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

123680004 is a wasteful number, since it uses less digits than its factorization.

123680004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 123680004 is about 11121.1511994038. The cubic root of 123680004 is about 498.2337735682.

The spelling of 123680004 in words is "one hundred twenty-three million, six hundred eighty thousand, four".