228208995 has 80 divisors (see below), whose sum is σ = 472747968. Its totient is φ = 103161600.

The previous prime is 228208987. The next prime is 228208999. The reversal of 228208995 is 599802822.

228208995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228208995 - 2³ = 228208987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 228208995.

It is not an unprimeable number, because it can be changed into a prime (228208999) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 285937 + ... + 286733.

Almost surely, 2^228208995 is an apocalyptic number.

228208995 is an abundant number, since it is smaller than the sum of its proper divisors (244538973).

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

228208995 is a wasteful number, since it uses less digits than its factorization.

228208995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 228208995 is about 15106.5878013534. The cubic root of 228208995 is about 611.0980803527.

The spelling of 228208995 in words is "two hundred twenty-eight million, two hundred eight thousand, nine hundred ninety-five".