224440638 has 8 divisors (see below), whose sum is σ = 448881288. Its totient is φ = 74813544.

The previous prime is 224440633. The next prime is 224440663. The reversal of 224440638 is 836044422.

224440638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

224440638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 224440599 and 224440608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224440633) 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, 18703381 + ... + 18703392.

It is an arithmetic number, because the mean of its divisors is an integer number (56110161).

Almost surely, 2^224440638 is an apocalyptic number.

224440638 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.

224440638 is a wasteful number, since it uses less digits than its factorization.

224440638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37406778.

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 224440638 is about 14981.3429972082. The cubic root of 224440638 is about 607.7157586856.

The spelling of 224440638 in words is "two hundred twenty-four million, four hundred forty thousand, six hundred thirty-eight".