224140644 has 216 divisors, whose sum is σ = 740725440. Its totient is φ = 55800576.

The previous prime is 224140621. The next prime is 224140673. The reversal of 224140644 is 446041422.

It is a happy number.

224140644 is a `hidden beast` number, since 2 + 2 + 4 + 14 + 0 + 644 = 666.

224140644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 809034 + ... + 809310.

Almost surely, 2^224140644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224140644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370362720).

224140644 is an abundant number, since it is smaller than the sum of its proper divisors (516584796).

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

224140644 is a wasteful number, since it uses less digits than its factorization.

224140644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 224140644 is about 14971.3273960594. The cubic root of 224140644 is about 607.4448743354. Note that the first 3 decimals are identical.

The spelling of 224140644 in words is "two hundred twenty-four million, one hundred forty thousand, six hundred forty-four".