13421814 has 16 divisors (see below), whose sum is σ = 30678528. Its totient is φ = 3834792.

The previous prime is 13421813. The next prime is 13421819. The reversal of 13421814 is 41812431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421813) 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, 159742 + ... + 159825.

It is an arithmetic number, because the mean of its divisors is an integer number (1917408).

Almost surely, 2^13421814 is an apocalyptic number.

13421814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13421814 is an abundant number, since it is smaller than the sum of its proper divisors (17256714).

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

13421814 is a wasteful number, since it uses less digits than its factorization.

13421814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319579.

The product of its digits is 768, while the sum is 24.

The square root of 13421814 is about 3663.5793972562. The cubic root of 13421814 is about 237.6495914466.

The spelling of 13421814 in words is "thirteen million, four hundred twenty-one thousand, eight hundred fourteen".