16020442 has 4 divisors (see below), whose sum is σ = 24030666. Its totient is φ = 8010220.

The previous prime is 16020421. The next prime is 16020449. The reversal of 16020442 is 24402061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13682601 + 2337841 = 3699^2 + 1529^2 .

It is not an unprimeable number, because it can be changed into a prime (16020449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4005109 + ... + 4005112.

Almost surely, 2^16020442 is an apocalyptic number.

16020442 is a deficient number, since it is larger than the sum of its proper divisors (8010224).

16020442 is an equidigital number, since it uses as much as digits as its factorization.

16020442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010223.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 16020442 is about 4002.5544343581. The cubic root of 16020442 is about 252.0914780846.

It can be divided in two parts, 160 and 20442, that added together give a palindrome (20602).

The spelling of 16020442 in words is "sixteen million, twenty thousand, four hundred forty-two".