5638424 has 32 divisors (see below), whose sum is σ = 12214800. Its totient is φ = 2411520.

The previous prime is 5638411. The next prime is 5638429. The reversal of 5638424 is 4248365.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5⁵ + 6⁸ + 3¹³ + 8⁷ + 4² + 2¹¹ + 4⁹ .

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5638429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389 + ... + 3380.

Almost surely, 2^5638424 is an apocalyptic number.

It is an amenable number.

5638424 is an abundant number, since it is smaller than the sum of its proper divisors (6576376).

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

5638424 is a wasteful number, since it uses less digits than its factorization.

5638424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803 (or 3799 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 5638424 is about 2374.5365863680. The cubic root of 5638424 is about 177.9860276033.

The spelling of 5638424 in words is "five million, six hundred thirty-eight thousand, four hundred twenty-four".