5638621230 has 96 divisors (see below), whose sum is σ = 16140215520. Its totient is φ = 1354371840.

The previous prime is 5638621229. The next prime is 5638621249. The reversal of 5638621230 is 321268365.

It is a happy number.

5638621230 is a `hidden beast` number, since 5 + 6 + 3 + 8 + 621 + 23 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81784 + ... + 134036.

It is an arithmetic number, because the mean of its divisors is an integer number (168127245).

Almost surely, 2^5638621230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5638621230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8070107760).

5638621230 is an abundant number, since it is smaller than the sum of its proper divisors (10501594290).

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

5638621230 is a wasteful number, since it uses less digits than its factorization.

5638621230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52386 (or 52383 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 5638621230 is about 75090.7532922663. The cubic root of 5638621230 is about 1779.8810287441.

Adding to 5638621230 its reverse (321268365), we get a palindrome (5959889595).

The spelling of 5638621230 in words is "five billion, six hundred thirty-eight million, six hundred twenty-one thousand, two hundred thirty".