16446634 has 4 divisors (see below), whose sum is σ = 24669954. Its totient is φ = 8223316.

The previous prime is 16446629. The next prime is 16446643. The reversal of 16446634 is 43664461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15642025 + 804609 = 3955^2 + 897^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16446634.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4111657 + ... + 4111660.

Almost surely, 2^16446634 is an apocalyptic number.

16446634 is a deficient number, since it is larger than the sum of its proper divisors (8223320).

16446634 is an equidigital number, since it uses as much as digits as its factorization.

16446634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223319.

The product of its digits is 41472, while the sum is 34.

The square root of 16446634 is about 4055.4449817498. Note that the first 3 decimals coincide. The cubic root of 16446634 is about 254.3074067558.

The spelling of 16446634 in words is "sixteen million, four hundred forty-six thousand, six hundred thirty-four".