16693390 has 16 divisors (see below), whose sum is σ = 34340832. Its totient is φ = 5723424.

The previous prime is 16693387. The next prime is 16693403. The reversal of 16693390 is 9339661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119169 + ... + 119308.

It is an arithmetic number, because the mean of its divisors is an integer number (2146302).

Almost surely, 2^16693390 is an apocalyptic number.

16693390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16693390 is an abundant number, since it is smaller than the sum of its proper divisors (17647442).

16693390 is a wasteful number, since it uses less digits than its factorization.

16693390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238491.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 16693390 is about 4085.7545202814. The cubic root of 16693390 is about 255.5729268455.

The spelling of 16693390 in words is "sixteen million, six hundred ninety-three thousand, three hundred ninety".