123704064 has 144 divisors (see below), whose sum is σ = 399315840. Its totient is φ = 37463040.

The previous prime is 123704039. The next prime is 123704069. The reversal of 123704064 is 460407321.

It is a tau number, because it is divible by the number of its divisors (144).

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 (123704069) 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 15 ways as a sum of consecutive naturals, for example, 75219 + ... + 76845.

Almost surely, 2^123704064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123704064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199657920).

123704064 is an abundant number, since it is smaller than the sum of its proper divisors (275611776).

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

123704064 is a wasteful number, since it uses less digits than its factorization.

123704064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663 (or 1643 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 123704064 is about 11122.2328693478. The cubic root of 123704064 is about 498.2660793222.

The spelling of 123704064 in words is "one hundred twenty-three million, seven hundred four thousand, sixty-four".