16649834 has 16 divisors (see below), whose sum is σ = 26562816. Its totient is φ = 7800000.

The previous prime is 16649807. The next prime is 16649839. The reversal of 16649834 is 43894661.

It is a junction number, because it is equal to n+sod(n) for n = 16649791 and 16649800.

It is not an unprimeable number, because it can be changed into a prime (16649839) 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, 7559 + ... + 9509.

It is an arithmetic number, because the mean of its divisors is an integer number (1660176).

Almost surely, 2^16649834 is an apocalyptic number.

16649834 is a deficient number, since it is larger than the sum of its proper divisors (9912982).

16649834 is a wasteful number, since it uses less digits than its factorization.

16649834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221.

The product of its digits is 124416, while the sum is 41.

The square root of 16649834 is about 4080.4208116321. The cubic root of 16649834 is about 255.3504549567.

The spelling of 16649834 in words is "sixteen million, six hundred forty-nine thousand, eight hundred thirty-four".