16442986 has 8 divisors (see below), whose sum is σ = 28188000. Its totient is φ = 7046988.

The previous prime is 16442983. The next prime is 16443001. The reversal of 16442986 is 68924461.

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

It is a super-3 number, since 3×16442986³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16442983) 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, 587236 + ... + 587263.

It is an arithmetic number, because the mean of its divisors is an integer number (3523500).

Almost surely, 2^16442986 is an apocalyptic number.

16442986 is a deficient number, since it is larger than the sum of its proper divisors (11745014).

16442986 is a wasteful number, since it uses less digits than its factorization.

16442986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174508.

The product of its digits is 82944, while the sum is 40.

The square root of 16442986 is about 4054.9951911192. The cubic root of 16442986 is about 254.2886028673.

The spelling of 16442986 in words is "sixteen million, four hundred forty-two thousand, nine hundred eighty-six".