16042445 has 4 divisors (see below), whose sum is σ = 19250940. Its totient is φ = 12833952.

The previous prime is 16042427. The next prime is 16042447. The reversal of 16042445 is 54424061.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10156969 + 5885476 = 3187^2 + 2426^2 .

It is a cyclic number.

It is not a de Polignac number, because 16042445 - 2¹⁴ = 16026061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16042447) 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, 1604240 + ... + 1604249.

It is an arithmetic number, because the mean of its divisors is an integer number (4812735).

Almost surely, 2^16042445 is an apocalyptic number.

It is an amenable number.

16042445 is a deficient number, since it is larger than the sum of its proper divisors (3208495).

16042445 is an equidigital number, since it uses as much as digits as its factorization.

16042445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208494.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 16042445 is about 4005.3021109524. The cubic root of 16042445 is about 252.2068355209.

The spelling of 16042445 in words is "sixteen million, forty-two thousand, four hundred forty-five".