16021982 has 8 divisors (see below), whose sum is σ = 24069000. Its totient is φ = 7998984.

The previous prime is 16021969. The next prime is 16021987. The reversal of 16021982 is 28912061.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16021987) 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, 4232 + ... + 7067.

It is an arithmetic number, because the mean of its divisors is an integer number (3008625).

Almost surely, 2^16021982 is an apocalyptic number.

16021982 is a deficient number, since it is larger than the sum of its proper divisors (8047018).

16021982 is a wasteful number, since it uses less digits than its factorization.

16021982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 16021982 is about 4002.7468068815. The cubic root of 16021982 is about 252.0995554405.

The spelling of 16021982 in words is "sixteen million, twenty-one thousand, nine hundred eighty-two".