13664530 has 48 divisors (see below), whose sum is σ = 28268352. Its totient is φ = 4743200.

The previous prime is 13664527. The next prime is 13664531. The reversal of 13664530 is 3546631.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13664531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27585 + ... + 28075.

It is an arithmetic number, because the mean of its divisors is an integer number (588924).

Almost surely, 2^13664530 is an apocalyptic number.

13664530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13664530 is an abundant number, since it is smaller than the sum of its proper divisors (14603822).

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

13664530 is a wasteful number, since it uses less digits than its factorization.

13664530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 13664530 is about 3696.5565057226. The cubic root of 13664530 is about 239.0735696670.

The spelling of 13664530 in words is "thirteen million, six hundred sixty-four thousand, five hundred thirty".