13405580 has 12 divisors (see below), whose sum is σ = 28151760. Its totient is φ = 5362224.

The previous prime is 13405549. The next prime is 13405607. The reversal of 13405580 is 8550431.

It is a super-3 number, since 3×13405580³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335120 + ... + 335159.

It is an arithmetic number, because the mean of its divisors is an integer number (2345980).

Almost surely, 2^13405580 is an apocalyptic number.

13405580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13405580 is an abundant number, since it is smaller than the sum of its proper divisors (14746180).

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

13405580 is a wasteful number, since it uses less digits than its factorization.

13405580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670288 (or 670286 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 13405580 is about 3661.3631341346. The cubic root of 13405580 is about 237.5537385323.

The spelling of 13405580 in words is "thirteen million, four hundred five thousand, five hundred eighty".