5638212 has 36 divisors (see below), whose sum is σ = 15004080. Its totient is φ = 1780272.

The previous prime is 5638207. The next prime is 5638219. The reversal of 5638212 is 2128365.

5638212 is a `hidden beast` number, since 5 + 638 + 21 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (5638219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3438 + ... + 4805.

It is an arithmetic number, because the mean of its divisors is an integer number (416780).

Almost surely, 2^5638212 is an apocalyptic number.

It is an amenable number.

5638212 is an abundant number, since it is smaller than the sum of its proper divisors (9365868).

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

5638212 is a wasteful number, since it uses less digits than its factorization.

5638212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272 (or 8267 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 5638212 is about 2374.4919456591. The cubic root of 5638212 is about 177.9837968671.

The spelling of 5638212 in words is "five million, six hundred thirty-eight thousand, two hundred twelve".