123480540 has 36 divisors (see below), whose sum is σ = 374558184. Its totient is φ = 32928096.

The previous prime is 123480527. The next prime is 123480551. The reversal of 123480540 is 45084321.

123480540 is a `hidden beast` number, since 12 + 34 + 80 + 540 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342822 + ... + 343181.

It is an arithmetic number, because the mean of its divisors is an integer number (10404394).

Almost surely, 2^123480540 is an apocalyptic number.

123480540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123480540 is an abundant number, since it is smaller than the sum of its proper divisors (251077644).

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

123480540 is a wasteful number, since it uses less digits than its factorization.

123480540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686018 (or 686013 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 123480540 is about 11112.1798041608. The cubic root of 123480540 is about 497.9657885241.

The spelling of 123480540 in words is "one hundred twenty-three million, four hundred eighty thousand, five hundred forty".