224226640 has 40 divisors (see below), whose sum is σ = 568722528. Its totient is φ = 81536640.

The previous prime is 224226631. The next prime is 224226671. The reversal of 224226640 is 46622422.

224226640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 224226599 and 224226608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126522 + ... + 128281.

Almost surely, 2^224226640 is an apocalyptic number.

224226640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224226640 is an abundant number, since it is smaller than the sum of its proper divisors (344495888).

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

224226640 is a wasteful number, since it uses less digits than its factorization.

224226640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254827 (or 254821 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 224226640 is about 14974.1991438607. The cubic root of 224226640 is about 607.5225504903.

It can be divided in two parts, 2242 and 26640, that added together give a palindrome (28882).

The spelling of 224226640 in words is "two hundred twenty-four million, two hundred twenty-six thousand, six hundred forty".