123186480 has 40 divisors (see below), whose sum is σ = 381878832. Its totient is φ = 32849664.

The previous prime is 123186463. The next prime is 123186487. The reversal of 123186480 is 84681321.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (123186487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256399 + ... + 256878.

Almost surely, 2^123186480 is an apocalyptic number.

123186480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123186480 is an abundant number, since it is smaller than the sum of its proper divisors (258692352).

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

123186480 is a wasteful number, since it uses less digits than its factorization.

123186480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513293 (or 513287 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 123186480 is about 11098.9404899747. The cubic root of 123186480 is about 497.5701844537.

The spelling of 123186480 in words is "one hundred twenty-three million, one hundred eighty-six thousand, four hundred eighty".