227677128 has 48 divisors (see below), whose sum is σ = 662125680. Its totient is φ = 65050272.

The previous prime is 227677123. The next prime is 227677183. The reversal of 227677128 is 821776722.

It is a super-2 number, since 2×227677128² = 103673749228656768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 227677128.

It is not an unprimeable number, because it can be changed into a prime (227677123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95626 + ... + 97977.

It is an arithmetic number, because the mean of its divisors is an integer number (13794285).

Almost surely, 2^227677128 is an apocalyptic number.

227677128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

227677128 is an abundant number, since it is smaller than the sum of its proper divisors (434448552).

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

227677128 is a wasteful number, since it uses less digits than its factorization.

227677128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193626 (or 193615 counting only the distinct ones).

The product of its digits is 131712, while the sum is 42.

The square root of 227677128 is about 15088.9737225565. The cubic root of 227677128 is about 610.6229665488.

The spelling of 227677128 in words is "two hundred twenty-seven million, six hundred seventy-seven thousand, one hundred twenty-eight".