16840534 has 8 divisors (see below), whose sum is σ = 25565400. Its totient is φ = 8318736.

The previous prime is 16840519. The next prime is 16840559. The reversal of 16840534 is 43504861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16840496 and 16840505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50559 + ... + 50890.

It is an arithmetic number, because the mean of its divisors is an integer number (3195675).

Almost surely, 2^16840534 is an apocalyptic number.

16840534 is a deficient number, since it is larger than the sum of its proper divisors (8724866).

16840534 is a wasteful number, since it uses less digits than its factorization.

16840534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101534.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 16840534 is about 4103.7219691397. The cubic root of 16840534 is about 256.3216477028.

The spelling of 16840534 in words is "sixteen million, eight hundred forty thousand, five hundred thirty-four".