16109930 has 8 divisors (see below), whose sum is σ = 28997892. Its totient is φ = 6443968.

The previous prime is 16109923. The next prime is 16109939. The reversal of 16109930 is 3990161.

It can be written as a sum of positive squares in 2 ways, for example, as 15499969 + 609961 = 3937^2 + 781^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16109893 and 16109902.

It is not an unprimeable number, because it can be changed into a prime (16109939) 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, 805487 + ... + 805506.

Almost surely, 2^16109930 is an apocalyptic number.

16109930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16109930 is a deficient number, since it is larger than the sum of its proper divisors (12887962).

16109930 is a wasteful number, since it uses less digits than its factorization.

16109930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611000.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 16109930 is about 4013.7177279923. The cubic root of 16109930 is about 252.5599896675.

The spelling of 16109930 in words is "sixteen million, one hundred nine thousand, nine hundred thirty".