16840630 has 8 divisors (see below), whose sum is σ = 30313152. Its totient is φ = 6736248.

The previous prime is 16840613. The next prime is 16840633. The reversal of 16840630 is 3604861.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16840633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842022 + ... + 842041.

It is an arithmetic number, because the mean of its divisors is an integer number (3789144).

Almost surely, 2^16840630 is an apocalyptic number.

16840630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16840630 is a deficient number, since it is larger than the sum of its proper divisors (13472522).

16840630 is a wasteful number, since it uses less digits than its factorization.

16840630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684070.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 16840630 is about 4103.7336658219. The cubic root of 16840630 is about 256.3221347585.

The spelling of 16840630 in words is "sixteen million, eight hundred forty thousand, six hundred thirty".