16444930 has 8 divisors (see below), whose sum is σ = 29600892. Its totient is φ = 6577968.

The previous prime is 16444919. The next prime is 16444993. The reversal of 16444930 is 3944461.

It can be written as a sum of positive squares in 2 ways, for example, as 15992001 + 452929 = 3999^2 + 673^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16444892 and 16444901.

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 3 ways as a sum of consecutive naturals, for example, 822237 + ... + 822256.

Almost surely, 2^16444930 is an apocalyptic number.

16444930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16444930 is a deficient number, since it is larger than the sum of its proper divisors (13155962).

16444930 is a wasteful number, since it uses less digits than its factorization.

16444930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644500.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 16444930 is about 4055.2348883881. The cubic root of 16444930 is about 254.2986237066.

The spelling of 16444930 in words is "sixteen million, four hundred forty-four thousand, nine hundred thirty".