16738641 has 12 divisors (see below), whose sum is σ = 25229568. Its totient is φ = 10673784.

The previous prime is 16738637. The next prime is 16738643. The reversal of 16738641 is 14683761.

16738641 is a `hidden beast` number, since 1 + 6 + 7 + 3 + 8 + 641 = 666.

It is not a de Polignac number, because 16738641 - 2² = 16738637 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16738596 and 16738605.

It is not an unprimeable number, because it can be changed into a prime (16738643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40225 + ... + 40638.

It is an arithmetic number, because the mean of its divisors is an integer number (2102464).

Almost surely, 2^16738641 is an apocalyptic number.

It is an amenable number.

16738641 is a deficient number, since it is larger than the sum of its proper divisors (8490927).

16738641 is a wasteful number, since it uses less digits than its factorization.

16738641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80892 (or 80889 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 16738641 is about 4091.2884278672. The cubic root of 16738641 is about 255.8036468387.

The spelling of 16738641 in words is "sixteen million, seven hundred thirty-eight thousand, six hundred forty-one".