16340633 has 4 divisors (see below), whose sum is σ = 16348980. Its totient is φ = 16332288.

The previous prime is 16340629. The next prime is 16340647. The reversal of 16340633 is 33604361.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33604361 = 7 ⋅4800623.

It can be written as a sum of positive squares in 2 ways, for example, as 16216729 + 123904 = 4027^2 + 352^2 .

It is a cyclic number.

It is not a de Polignac number, because 16340633 - 2² = 16340629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16340663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533 + ... + 5741.

It is an arithmetic number, because the mean of its divisors is an integer number (4087245).

Almost surely, 2^16340633 is an apocalyptic number.

It is an amenable number.

16340633 is a deficient number, since it is larger than the sum of its proper divisors (8347).

16340633 is an equidigital number, since it uses as much as digits as its factorization.

16340633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 16340633 is about 4042.3548829859. The cubic root of 16340633 is about 253.7598790915.

Adding to 16340633 its reverse (33604361), we get a palindrome (49944994).

The spelling of 16340633 in words is "sixteen million, three hundred forty thousand, six hundred thirty-three".