16340634 has 12 divisors (see below), whose sum is σ = 35404746. Its totient is φ = 5446872.

The previous prime is 16340629. The next prime is 16340647. The reversal of 16340634 is 43604361.

It can be written as a sum of positive squares in only one way, i.e., 10595025 + 5745609 = 3255^2 + 2397^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16340598 and 16340607.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 453889 + ... + 453924.

Almost surely, 2^16340634 is an apocalyptic number.

16340634 is an abundant number, since it is smaller than the sum of its proper divisors (19064112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16340634 is a wasteful number, since it uses less digits than its factorization.

16340634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907821 (or 907818 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 16340634 is about 4042.3550066762. The cubic root of 16340634 is about 253.7598842680.

Adding to 16340634 its reverse (43604361), we get a palindrome (59944995).

The spelling of 16340634 in words is "sixteen million, three hundred forty thousand, six hundred thirty-four".