13320408 has 32 divisors (see below), whose sum is σ = 34115760. Its totient is φ = 4331520.

The previous prime is 13320397. The next prime is 13320409. The reversal of 13320408 is 80402331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320409) 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, 5785 + ... + 7752.

Almost surely, 2^13320408 is an apocalyptic number.

It is an amenable number.

13320408 is an abundant number, since it is smaller than the sum of its proper divisors (20795352).

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

13320408 is a wasteful number, since it uses less digits than its factorization.

13320408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13587 (or 13583 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13320408 is about 3649.7134134066. The cubic root of 13320408 is about 237.0495721404.

Adding to 13320408 its reverse (80402331), we get a palindrome (93722739).

The spelling of 13320408 in words is "thirteen million, three hundred twenty thousand, four hundred eight".