227443640 has 16 divisors (see below), whose sum is σ = 511748280. Its totient is φ = 90977440.

The previous prime is 227443639. The next prime is 227443679. The reversal of 227443640 is 46344722.

227443640 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 227443597 and 227443606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2843006 + ... + 2843085.

Almost surely, 2^227443640 is an apocalyptic number.

227443640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227443640 is an abundant number, since it is smaller than the sum of its proper divisors (284304640).

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

227443640 is a wasteful number, since it uses less digits than its factorization.

227443640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686102 (or 5686098 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 227443640 is about 15081.2346974643. The cubic root of 227443640 is about 610.4141593056.

The spelling of 227443640 in words is "two hundred twenty-seven million, four hundred forty-three thousand, six hundred forty".