224286840 has 64 divisors (see below), whose sum is σ = 747626400. Its totient is φ = 59809536.

The previous prime is 224286827. The next prime is 224286847. The reversal of 224286840 is 48682422.

It is a happy number.

It is a super-3 number, since 3×224286840³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 224286795 and 224286804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224286847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102757 + ... + 104916.

Almost surely, 2^224286840 is an apocalyptic number.

224286840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224286840 is an abundant number, since it is smaller than the sum of its proper divisors (523339560).

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

224286840 is a wasteful number, since it uses less digits than its factorization.

224286840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207693 (or 207683 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 224286840 is about 14976.2091331552. The cubic root of 224286840 is about 607.5769145109.

The spelling of 224286840 in words is "two hundred twenty-four million, two hundred eighty-six thousand, eight hundred forty".