13649650 has 48 divisors (see below), whose sum is σ = 29551680. Its totient is φ = 4593600.

The previous prime is 13649627. The next prime is 13649651. The reversal of 13649650 is 5694631.

It is not an unprimeable number, because it can be changed into a prime (13649651) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 20320 + ... + 20980.

It is an arithmetic number, because the mean of its divisors is an integer number (615660).

Almost surely, 2^13649650 is an apocalyptic number.

13649650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13649650 is an abundant number, since it is smaller than the sum of its proper divisors (15902030).

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

13649650 is a wasteful number, since it uses less digits than its factorization.

13649650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 13649650 is about 3694.5432735319. The cubic root of 13649650 is about 238.9867583684.

The spelling of 13649650 in words is "thirteen million, six hundred forty-nine thousand, six hundred fifty".