13472640 has 96 divisors (see below), whose sum is σ = 46542600. Its totient is φ = 3591168.

The previous prime is 13472639. The next prime is 13472647. The reversal of 13472640 is 4627431.

13472640 is a `hidden beast` number, since 13 + 4 + 7 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13472647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4591 + ... + 6929.

Almost surely, 2^13472640 is an apocalyptic number.

13472640 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 13472640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23271300).

13472640 is an abundant number, since it is smaller than the sum of its proper divisors (33069960).

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

13472640 is a wasteful number, since it uses less digits than its factorization.

13472640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 13472640 is about 3670.5095014180. The cubic root of 13472640 is about 237.9491923652.

The spelling of 13472640 in words is "thirteen million, four hundred seventy-two thousand, six hundred forty".