228108428 has 12 divisors (see below), whose sum is σ = 400847832. Its totient is φ = 113580480.

The previous prime is 228108427. The next prime is 228108479. The reversal of 228108428 is 824801822.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (228108427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117350 + ... + 119277.

It is an arithmetic number, because the mean of its divisors is an integer number (33403986).

Almost surely, 2^228108428 is an apocalyptic number.

It is an amenable number.

228108428 is a deficient number, since it is larger than the sum of its proper divisors (172739404).

228108428 is a wasteful number, since it uses less digits than its factorization.

228108428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236872 (or 236870 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 228108428 is about 15103.2588536382. The cubic root of 228108428 is about 611.0083010543.

The spelling of 228108428 in words is "two hundred twenty-eight million, one hundred eight thousand, four hundred twenty-eight".