13421888 has 14 divisors (see below), whose sum is σ = 26634186. Its totient is φ = 6710912.

The previous prime is 13421887. The next prime is 13421897. The reversal of 13421888 is 88812431.

It can be written as a sum of positive squares in only one way, i.e., 10705984 + 2715904 = 3272^2 + 1648^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104795 + ... + 104922.

Almost surely, 2^13421888 is an apocalyptic number.

It is an amenable number.

13421888 is a deficient number, since it is larger than the sum of its proper divisors (13212298).

13421888 is an equidigital number, since it uses as much as digits as its factorization.

13421888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209729 (or 209719 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 13421888 is about 3663.5894966549. The cubic root of 13421888 is about 237.6500281993.

It can be divided in two parts, 134 and 21888, that added together give a palindrome (22022).

The spelling of 13421888 in words is "thirteen million, four hundred twenty-one thousand, eight hundred eighty-eight".