123728048 has 20 divisors (see below), whose sum is σ = 240219000. Its totient is φ = 61736064.

The previous prime is 123728047. The next prime is 123728053. The reversal of 123728048 is 840827321.

It is a junction number, because it is equal to n+sod(n) for n = 123727999 and 123728017.

It is not an unprimeable number, because it can be changed into a prime (123728047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236 + ... + 15732.

It is an arithmetic number, because the mean of its divisors is an integer number (12010950).

Almost surely, 2^123728048 is an apocalyptic number.

It is an amenable number.

123728048 is a deficient number, since it is larger than the sum of its proper divisors (116490952).

123728048 is a wasteful number, since it uses less digits than its factorization.

123728048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16004 (or 15998 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 123728048 is about 11123.3110178579. The cubic root of 123728048 is about 498.2982788609.

The spelling of 123728048 in words is "one hundred twenty-three million, seven hundred twenty-eight thousand, forty-eight".