13010640 has 80 divisors (see below), whose sum is σ = 42104448. Its totient is φ = 3317248.

The previous prime is 13010633. The next prime is 13010659. The reversal of 13010640 is 4601031.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4342 + ... + 6698.

Almost surely, 2^13010640 is an apocalyptic number.

13010640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13010640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21052224).

13010640 is an abundant number, since it is smaller than the sum of its proper divisors (29093808).

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

13010640 is a wasteful number, since it uses less digits than its factorization.

13010640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396 (or 2390 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13010640 is about 3607.0264761989. The cubic root of 13010640 is about 235.1976005123.

Adding to 13010640 its reverse (4601031), we get a palindrome (17611671).

The spelling of 13010640 in words is "thirteen million, ten thousand, six hundred forty".