13452640 has 48 divisors (see below), whose sum is σ = 32196528. Its totient is φ = 5310976.

The previous prime is 13452629. The next prime is 13452641. The reversal of 13452640 is 4625431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13452641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12774 + ... + 13786.

It is an arithmetic number, because the mean of its divisors is an integer number (670761).

Almost surely, 2^13452640 is an apocalyptic number.

13452640 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 13452640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16098264).

13452640 is an abundant number, since it is smaller than the sum of its proper divisors (18743888).

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

13452640 is a wasteful number, since it uses less digits than its factorization.

13452640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 13452640 is about 3667.7840721613. The cubic root of 13452640 is about 237.8313896510.

The spelling of 13452640 in words is "thirteen million, four hundred fifty-two thousand, six hundred forty".