16442339 has 4 divisors (see below), whose sum is σ = 16792224. Its totient is φ = 16092456.

The previous prime is 16442311. The next prime is 16442341. The reversal of 16442339 is 93324461.

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

It is a cyclic number.

It is not a de Polignac number, because 16442339 - 2¹² = 16438243 is a prime.

It is a super-3 number, since 3×16442339³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16442359) 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, 174872 + ... + 174965.

It is an arithmetic number, because the mean of its divisors is an integer number (4198056).

Almost surely, 2^16442339 is an apocalyptic number.

16442339 is a deficient number, since it is larger than the sum of its proper divisors (349885).

16442339 is an equidigital number, since it uses as much as digits as its factorization.

16442339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349884.

The product of its digits is 15552, while the sum is 32.

The square root of 16442339 is about 4054.9154121880. The cubic root of 16442339 is about 254.2852675670.

The spelling of 16442339 in words is "sixteen million, four hundred forty-two thousand, three hundred thirty-nine".