13804641 has 16 divisors (see below), whose sum is σ = 21112320. Its totient is φ = 8905680.

The previous prime is 13804631. The next prime is 13804657. The reversal of 13804641 is 14640831.

13804641 is a `hidden beast` number, since 13 + 8 + 0 + 4 + 641 = 666.

It is not a de Polignac number, because 13804641 - 2⁷ = 13804513 is a prime.

It is a super-2 number, since 2×13804641² = 381136226277762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13804631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7410 + ... + 9083.

It is an arithmetic number, because the mean of its divisors is an integer number (1319520).

Almost surely, 2^13804641 is an apocalyptic number.

It is an amenable number.

13804641 is a deficient number, since it is larger than the sum of its proper divisors (7307679).

13804641 is a wasteful number, since it uses less digits than its factorization.

13804641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16533 (or 16527 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 13804641 is about 3715.4597292933. The cubic root of 13804641 is about 239.8879164134.

The spelling of 13804641 in words is "thirteen million, eight hundred four thousand, six hundred forty-one".