13340404 has 24 divisors (see below), whose sum is σ = 29107008. Its totient is φ = 5197440.

The previous prime is 13340357. The next prime is 13340407. The reversal of 13340404 is 40404331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340407) 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, 21349 + ... + 21964.

It is an arithmetic number, because the mean of its divisors is an integer number (1212792).

Almost surely, 2^13340404 is an apocalyptic number.

13340404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13340404 is an abundant number, since it is smaller than the sum of its proper divisors (15766604).

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

13340404 is a wasteful number, since it uses less digits than its factorization.

13340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43335 (or 43333 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13340404 is about 3652.4517792847. The cubic root of 13340404 is about 237.1681289037.

Adding to 13340404 its reverse (40404331), we get a palindrome (53744735).

The spelling of 13340404 in words is "thirteen million, three hundred forty thousand, four hundred four".