226281840 has 60 divisors (see below), whose sum is σ = 702196872. Its totient is φ = 60279680.

The previous prime is 226281817. The next prime is 226281859. The reversal of 226281840 is 48182622.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×226281840² = 102406942227571200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232555 + ... + 233525.

Almost surely, 2^226281840 is an apocalyptic number.

226281840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226281840 is an abundant number, since it is smaller than the sum of its proper divisors (475915032).

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

226281840 is an frugal number, since it uses more digits than its factorization.

226281840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 226281840 is about 15042.6673166696. The cubic root of 226281840 is about 609.3730367327.

The spelling of 226281840 in words is "two hundred twenty-six million, two hundred eighty-one thousand, eight hundred forty".