13443616 has 24 divisors (see below), whose sum is σ = 26626320. Its totient is φ = 6681408.

The previous prime is 13443589. The next prime is 13443623. The reversal of 13443616 is 61634431.

It is a super-2 number, since 2×13443616² = 361461622310912, which contains 22 as substring.

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, 4555 + ... + 6901.

It is an arithmetic number, because the mean of its divisors is an integer number (1109430).

Almost surely, 2^13443616 is an apocalyptic number.

13443616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13443616 is a deficient number, since it is larger than the sum of its proper divisors (13182704).

13443616 is a wasteful number, since it uses less digits than its factorization.

13443616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536 (or 2528 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 13443616 is about 3666.5536952293. The cubic root of 13443616 is about 237.7781988392.

The spelling of 13443616 in words is "thirteen million, four hundred forty-three thousand, six hundred sixteen".