16938830 has 8 divisors (see below), whose sum is σ = 30489912. Its totient is φ = 6775528.

The previous prime is 16938829. The next prime is 16938839. The reversal of 16938830 is 3883961.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16938839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846932 + ... + 846951.

It is an arithmetic number, because the mean of its divisors is an integer number (3811239).

Almost surely, 2^16938830 is an apocalyptic number.

16938830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16938830 is a deficient number, since it is larger than the sum of its proper divisors (13551082).

16938830 is a wasteful number, since it uses less digits than its factorization.

16938830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693890.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 16938830 is about 4115.6809886093. The cubic root of 16938830 is about 256.8193858840.

The spelling of 16938830 in words is "sixteen million, nine hundred thirty-eight thousand, eight hundred thirty".