13064640 has 112 divisors (see below), whose sum is σ = 42915840. Its totient is φ = 3363840.

The previous prime is 13064633. The next prime is 13064641. The reversal of 13064640 is 4646031.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13064640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13064641) 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, 29541 + ... + 29979.

Almost surely, 2^13064640 is an apocalyptic number.

13064640 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 13064640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21457920).

13064640 is an abundant number, since it is smaller than the sum of its proper divisors (29851200).

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

13064640 is a wasteful number, since it uses less digits than its factorization.

13064640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 13064640 is about 3614.5041153663. The cubic root of 13064640 is about 235.5225432687.

The spelling of 13064640 in words is "thirteen million, sixty-four thousand, six hundred forty".