16020049 has 4 divisors (see below), whose sum is σ = 16045236. Its totient is φ = 15994864.

The previous prime is 16020041. The next prime is 16020061. The reversal of 16020049 is 94002061.

16020049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1580049 + 14440000 = 1257^2 + 3800^2 .

It is a cyclic number.

It is not a de Polignac number, because 16020049 - 2³ = 16020041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16020041) 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, 11614 + ... + 12919.

It is an arithmetic number, because the mean of its divisors is an integer number (4011309).

Almost surely, 2^16020049 is an apocalyptic number.

It is an amenable number.

16020049 is a deficient number, since it is larger than the sum of its proper divisors (25187).

16020049 is an equidigital number, since it uses as much as digits as its factorization.

16020049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25186.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 16020049 is about 4002.5053404087. The cubic root of 16020049 is about 252.0894167024.

The spelling of 16020049 in words is "sixteen million, twenty thousand, forty-nine".