5638242 has 8 divisors (see below), whose sum is σ = 11276496. Its totient is φ = 1879412.

The previous prime is 5638229. The next prime is 5638247. The reversal of 5638242 is 2428365.

It is a sphenic number, since it is the product of 3 distinct primes.

5638242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (5638247) 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, 469848 + ... + 469859.

It is an arithmetic number, because the mean of its divisors is an integer number (1409562).

Almost surely, 2^5638242 is an apocalyptic number.

5638242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5638242 is a wasteful number, since it uses less digits than its factorization.

5638242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939712.

The product of its digits is 11520, while the sum is 30.

The square root of 5638242 is about 2374.4982627915. The cubic root of 5638242 is about 177.9841125407.

The spelling of 5638242 in words is "five million, six hundred thirty-eight thousand, two hundred forty-two".