13320536 has 8 divisors (see below), whose sum is σ = 24976020. Its totient is φ = 6660264.

The previous prime is 13320533. The next prime is 13320551. The reversal of 13320536 is 63502331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832526 + ... + 832541.

Almost surely, 2^13320536 is an apocalyptic number.

It is an amenable number.

13320536 is a deficient number, since it is larger than the sum of its proper divisors (11655484).

13320536 is a wasteful number, since it uses less digits than its factorization.

13320536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665073 (or 1665069 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 13320536 is about 3649.7309489879. The cubic root of 13320536 is about 237.0503314327.

Adding to 13320536 its reverse (63502331), we get a palindrome (76822867).

The spelling of 13320536 in words is "thirteen million, three hundred twenty thousand, five hundred thirty-six".