16993190 has 8 divisors (see below), whose sum is σ = 30587760. Its totient is φ = 6797272.

The previous prime is 16993187. The next prime is 16993199. The reversal of 16993190 is 9139961.

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

It is a super-2 number, since 2×16993190² = 577537012752200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16993199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849650 + ... + 849669.

It is an arithmetic number, because the mean of its divisors is an integer number (3823470).

Almost surely, 2^16993190 is an apocalyptic number.

16993190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16993190 is a deficient number, since it is larger than the sum of its proper divisors (13594570).

16993190 is a wasteful number, since it uses less digits than its factorization.

16993190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699326.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 16993190 is about 4122.2797090930. The cubic root of 16993190 is about 257.0938203084.

The spelling of 16993190 in words is "sixteen million, nine hundred ninety-three thousand, one hundred ninety".