16368634 has 4 divisors (see below), whose sum is σ = 24552954. Its totient is φ = 8184316.

The previous prime is 16368619. The next prime is 16368659. The reversal of 16368634 is 43686361.

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., 14554225 + 1814409 = 3815^2 + 1347^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16368593 and 16368602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4092157 + ... + 4092160.

Almost surely, 2^16368634 is an apocalyptic number.

16368634 is a deficient number, since it is larger than the sum of its proper divisors (8184320).

16368634 is an equidigital number, since it uses as much as digits as its factorization.

16368634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8184319.

The product of its digits is 62208, while the sum is 37.

The square root of 16368634 is about 4045.8168520090. The cubic root of 16368634 is about 253.9047424229.

The spelling of 16368634 in words is "sixteen million, three hundred sixty-eight thousand, six hundred thirty-four".