13650580 has 48 divisors (see below), whose sum is σ = 29748096. Its totient is φ = 5258880.

The previous prime is 13650563. The next prime is 13650583. The reversal of 13650580 is 8505631.

13650580 = T₂₀₅ + T₂₀₆ + ... + T₄₄₈.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13650583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81657 + ... + 81823.

It is an arithmetic number, because the mean of its divisors is an integer number (619752).

Almost surely, 2^13650580 is an apocalyptic number.

13650580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13650580 is an abundant number, since it is smaller than the sum of its proper divisors (16097516).

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

13650580 is a wasteful number, since it uses less digits than its factorization.

13650580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 13650580 is about 3694.6691326829. The cubic root of 13650580 is about 238.9921859224.

The spelling of 13650580 in words is "thirteen million, six hundred fifty thousand, five hundred eighty".