6542244 has 18 divisors (see below), whose sum is σ = 16537430. Its totient is φ = 2180736.

The previous prime is 6542243. The next prime is 6542257. The reversal of 6542244 is 4422456.

6542244 is a `hidden beast` number, since 654 + 2 + 2 + 4 + 4 = 666.

6542244 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6350400 + 191844 = 2520^2 + 438^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (6542243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90829 + ... + 90900.

Almost surely, 2^6542244 is an apocalyptic number.

It is an amenable number.

6542244 is an abundant number, since it is smaller than the sum of its proper divisors (9995186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6542244 is a wasteful number, since it uses less digits than its factorization.

6542244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181739 (or 181734 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 6542244 is about 2557.7810695992. The cubic root of 6542244 is about 187.0289830872.

It can be divided in two parts, 6542 and 244, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 6542244 in words is "six million, five hundred forty-two thousand, two hundred forty-four".