123650320 has 80 divisors (see below), whose sum is σ = 301266432. Its totient is φ = 47139840.

The previous prime is 123650297. The next prime is 123650339. The reversal of 123650320 is 23056321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×123650320² = 30578803272204800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123650291 and 123650300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180699 + ... + 181381.

Almost surely, 2^123650320 is an apocalyptic number.

123650320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123650320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150633216).

123650320 is an abundant number, since it is smaller than the sum of its proper divisors (177616112).

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

123650320 is a wasteful number, since it uses less digits than its factorization.

123650320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 123650320 is about 11119.8165452493. The cubic root of 123650320 is about 498.1939106040.

The spelling of 123650320 in words is "one hundred twenty-three million, six hundred fifty thousand, three hundred twenty".