13416440 has 16 divisors (see below), whose sum is σ = 30187080. Its totient is φ = 5366560.

The previous prime is 13416341. The next prime is 13416457. The reversal of 13416440 is 4461431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167666 + ... + 167745.

Almost surely, 2^13416440 is an apocalyptic number.

13416440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13416440 is an abundant number, since it is smaller than the sum of its proper divisors (16770640).

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

13416440 is a wasteful number, since it uses less digits than its factorization.

13416440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335422 (or 335418 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 13416440 is about 3662.8458881039. The cubic root of 13416440 is about 237.6178694704.

Adding to 13416440 its reverse (4461431), we get a palindrome (17877871).

The spelling of 13416440 in words is "thirteen million, four hundred sixteen thousand, four hundred forty".