123930540 has 192 divisors, whose sum is σ = 416102400. Its totient is φ = 30523392.

The previous prime is 123930517. The next prime is 123930553. The reversal of 123930540 is 45039321.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 482092 + ... + 482348.

It is an arithmetic number, because the mean of its divisors is an integer number (2167200).

Almost surely, 2^123930540 is an apocalyptic number.

123930540 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 123930540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208051200).

123930540 is an abundant number, since it is smaller than the sum of its proper divisors (292171860).

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

123930540 is a wasteful number, since it uses less digits than its factorization.

123930540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 123930540 is about 11132.4094427038. The cubic root of 123930540 is about 498.5699672452.

Adding to 123930540 its reverse (45039321), we get a palindrome (168969861).

The spelling of 123930540 in words is "one hundred twenty-three million, nine hundred thirty thousand, five hundred forty".