16419930 has 64 divisors (see below), whose sum is σ = 41990400. Its totient is φ = 4100096.

The previous prime is 16419929. The next prime is 16419959. The reversal of 16419930 is 3991461.

It is a super-2 number, since 2×16419930² = 539228202409800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16419891 and 16419900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36346 + ... + 36794.

It is an arithmetic number, because the mean of its divisors is an integer number (656100).

Almost surely, 2^16419930 is an apocalyptic number.

16419930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16419930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20995200).

16419930 is an abundant number, since it is smaller than the sum of its proper divisors (25570470).

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

16419930 is a wasteful number, since it uses less digits than its factorization.

16419930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 16419930 is about 4052.1512804929. The cubic root of 16419930 is about 254.1696946099.

The spelling of 16419930 in words is "sixteen million, four hundred nineteen thousand, nine hundred thirty".