227738428 has 12 divisors (see below), whose sum is σ = 398906872. Its totient is φ = 113765040.

The previous prime is 227738377. The next prime is 227738429. The reversal of 227738428 is 824837722.

It is a happy number.

It is a super-3 number, since 3×227738428³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227738429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21018 + ... + 29953.

Almost surely, 2^227738428 is an apocalyptic number.

It is an amenable number.

227738428 is a deficient number, since it is larger than the sum of its proper divisors (171168444).

227738428 is a wasteful number, since it uses less digits than its factorization.

227738428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52092 (or 52090 counting only the distinct ones).

The product of its digits is 301056, while the sum is 43.

The square root of 227738428 is about 15091.0048704518. The cubic root of 227738428 is about 610.6777631949.

The spelling of 227738428 in words is "two hundred twenty-seven million, seven hundred thirty-eight thousand, four hundred twenty-eight".