13421760 has 224 divisors, whose sum is σ = 49158144. Its totient is φ = 3072000.

The previous prime is 13421747. The next prime is 13421767. The reversal of 13421760 is 6712431.

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

It is a nialpdrome in base 16.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13421760.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327340 + ... + 327380.

It is an arithmetic number, because the mean of its divisors is an integer number (219456).

Almost surely, 2^13421760 is an apocalyptic number.

13421760 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 13421760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24579072).

13421760 is an abundant number, since it is smaller than the sum of its proper divisors (35736384).

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

13421760 is a wasteful number, since it uses less digits than its factorization.

13421760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13421760 is about 3663.5720274071. The cubic root of 13421760 is about 237.6492727343.

The spelling of 13421760 in words is "thirteen million, four hundred twenty-one thousand, seven hundred sixty".