16840994 has 8 divisors (see below), whose sum is σ = 25944348. Its totient is φ = 8192880.

The previous prime is 16840981. The next prime is 16841003. The reversal of 16840994 is 49904861.

It can be written as a sum of positive squares in 2 ways, for example, as 14922769 + 1918225 = 3863^2 + 1385^2 .

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

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, 113717 + ... + 113864.

Almost surely, 2^16840994 is an apocalyptic number.

16840994 is a deficient number, since it is larger than the sum of its proper divisors (9103354).

16840994 is a wasteful number, since it uses less digits than its factorization.

16840994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227620.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 16840994 is about 4103.7780154389. The cubic root of 16840994 is about 256.3239814943.

The spelling of 16840994 in words is "sixteen million, eight hundred forty thousand, nine hundred ninety-four".