228907899 has 12 divisors (see below), whose sum is σ = 360703512. Its totient is φ = 138732000.

The previous prime is 228907883. The next prime is 228907949. The reversal of 228907899 is 998709822.

It is not a de Polignac number, because 228907899 - 2⁴ = 228907883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228907849) 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, 1156002 + ... + 1156199.

It is an arithmetic number, because the mean of its divisors is an integer number (30058626).

Almost surely, 2^228907899 is an apocalyptic number.

228907899 is a deficient number, since it is larger than the sum of its proper divisors (131795613).

228907899 is a wasteful number, since it uses less digits than its factorization.

228907899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312218 (or 2312215 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 228907899 is about 15129.7025416893. The cubic root of 228907899 is about 611.7212863275.

The spelling of 228907899 in words is "two hundred twenty-eight million, nine hundred seven thousand, eight hundred ninety-nine".