123560478 has 40 divisors (see below), whose sum is σ = 278479080. Its totient is φ = 40947120.

The previous prime is 123560467. The next prime is 123560483. The reversal of 123560478 is 874065321.

123560478 is a `hidden beast` number, since 1 + 23 + 560 + 4 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26868 + ... + 31128.

It is an arithmetic number, because the mean of its divisors is an integer number (6961977).

Almost surely, 2^123560478 is an apocalyptic number.

123560478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123560478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139239540).

123560478 is an abundant number, since it is smaller than the sum of its proper divisors (154918602).

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

123560478 is a wasteful number, since it uses less digits than its factorization.

123560478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454 (or 4445 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 123560478 is about 11115.7760862659. The cubic root of 123560478 is about 498.0732219233.

The spelling of 123560478 in words is "one hundred twenty-three million, five hundred sixty thousand, four hundred seventy-eight".