16679390 has 32 divisors (see below), whose sum is σ = 36953280. Its totient is φ = 5278464.

The previous prime is 16679371. The next prime is 16679423. The reversal of 16679390 is 9397661.

It is a happy number.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8255 + ... + 10074.

It is an arithmetic number, because the mean of its divisors is an integer number (1154790).

Almost surely, 2^16679390 is an apocalyptic number.

16679390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16679390 is an abundant number, since it is smaller than the sum of its proper divisors (20273890).

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

16679390 is a wasteful number, since it uses less digits than its factorization.

16679390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18356.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 16679390 is about 4084.0408910783. The cubic root of 16679390 is about 255.5014610001.

The spelling of 16679390 in words is "sixteen million, six hundred seventy-nine thousand, three hundred ninety".