13013736 has 64 divisors (see below), whose sum is σ = 33868800. Its totient is φ = 4164288.

The previous prime is 13013731. The next prime is 13013743. The reversal of 13013736 is 63731031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013731) 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 15 ways as a sum of consecutive naturals, for example, 93555 + ... + 93693.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 2^13013736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13013736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16934400).

13013736 is an abundant number, since it is smaller than the sum of its proper divisors (20855064).

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

13013736 is a wasteful number, since it uses less digits than its factorization.

13013736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 13013736 is about 3607.4556130325. The cubic root of 13013736 is about 235.2162548348.

Adding to 13013736 its reverse (63731031), we get a palindrome (76744767).

The spelling of 13013736 in words is "thirteen million, thirteen thousand, seven hundred thirty-six".