13481616 has 40 divisors (see below), whose sum is σ = 35773504. Its totient is φ = 4371840.

The previous prime is 13481609. The next prime is 13481617. The reversal of 13481616 is 61618431.

13481616 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (13481617) 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, 2020 + ... + 5571.

Almost surely, 2^13481616 is an apocalyptic number.

13481616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13481616 is an abundant number, since it is smaller than the sum of its proper divisors (22291888).

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

13481616 is a wasteful number, since it uses less digits than its factorization.

13481616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639 (or 7633 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 13481616 is about 3671.7320163650. The cubic root of 13481616 is about 238.0020243219.

The spelling of 13481616 in words is "thirteen million, four hundred eighty-one thousand, six hundred sixteen".