13580478 has 24 divisors (see below), whose sum is σ = 30973800. Its totient is φ = 4288464.

The previous prime is 13580429. The next prime is 13580507. The reversal of 13580478 is 87408531.

13580478 is a `hidden beast` number, since 1 + 3 + 580 + 4 + 78 = 666.

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, 19513 + ... + 20196.

It is an arithmetic number, because the mean of its divisors is an integer number (1290575).

Almost surely, 2^13580478 is an apocalyptic number.

13580478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13580478 is an abundant number, since it is smaller than the sum of its proper divisors (17393322).

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

13580478 is a wasteful number, since it uses less digits than its factorization.

13580478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39736 (or 39733 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 13580478 is about 3685.1700096468. The cubic root of 13580478 is about 238.5823720327.

The spelling of 13580478 in words is "thirteen million, five hundred eighty thousand, four hundred seventy-eight".