123604812 has 48 divisors (see below), whose sum is σ = 330803200. Its totient is φ = 39871440.

The previous prime is 123604799. The next prime is 123604813. The reversal of 123604812 is 218406321.

123604812 is a `hidden beast` number, since 123 + 60 + 481 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (123604813) 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, 15112 + ... + 21807.

Almost surely, 2^123604812 is an apocalyptic number.

123604812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123604812 is an abundant number, since it is smaller than the sum of its proper divisors (207198388).

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

123604812 is a wasteful number, since it uses less digits than its factorization.

123604812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36963 (or 36955 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 123604812 is about 11117.7701001595. The cubic root of 123604812 is about 498.1327850299.

The spelling of 123604812 in words is "one hundred twenty-three million, six hundred four thousand, eight hundred twelve".