13649506 has 8 divisors (see below), whose sum is σ = 22049244. Its totient is φ = 6299760.

The previous prime is 13649497. The next prime is 13649509. The reversal of 13649506 is 60594631.

It can be written as a sum of positive squares in 2 ways, for example, as 11840481 + 1809025 = 3441^2 + 1345^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13649509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262465 + ... + 262516.

Almost surely, 2^13649506 is an apocalyptic number.

13649506 is a deficient number, since it is larger than the sum of its proper divisors (8399738).

13649506 is a wasteful number, since it uses less digits than its factorization.

13649506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524996.

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

The square root of 13649506 is about 3694.5237852800. The cubic root of 13649506 is about 238.9859179509.

The spelling of 13649506 in words is "thirteen million, six hundred forty-nine thousand, five hundred six".