13663450 has 12 divisors (see below), whose sum is σ = 25414110. Its totient is φ = 5465360.

The previous prime is 13663423. The next prime is 13663457. The reversal of 13663450 is 5436631.

It can be written as a sum of positive squares in 3 ways, for example, as 10361961 + 3301489 = 3219^2 + 1817^2 .

It is not an unprimeable number, because it can be changed into a prime (13663457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136585 + ... + 136684.

Almost surely, 2^13663450 is an apocalyptic number.

13663450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13663450 is a deficient number, since it is larger than the sum of its proper divisors (11750660).

13663450 is a wasteful number, since it uses less digits than its factorization.

13663450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273281 (or 273276 counting only the distinct ones).

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

The square root of 13663450 is about 3696.4104209354. The cubic root of 13663450 is about 239.0672709686.

The spelling of 13663450 in words is "thirteen million, six hundred sixty-three thousand, four hundred fifty".