228384137 has 8 divisors (see below), whose sum is σ = 247442976. Its totient is φ = 209950272.

The previous prime is 228384119. The next prime is 228384179. The reversal of 228384137 is 731483822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228384137 - 2²⁶ = 161275273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228384137.

It is not an unprimeable number, because it can be changed into a prime (228384197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155483 + ... + 156944.

It is an arithmetic number, because the mean of its divisors is an integer number (30930372).

Almost surely, 2^228384137 is an apocalyptic number.

It is an amenable number.

228384137 is a deficient number, since it is larger than the sum of its proper divisors (19058839).

228384137 is a wasteful number, since it uses less digits than its factorization.

228384137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312487.

The product of its digits is 64512, while the sum is 38.

The square root of 228384137 is about 15112.3835644812. The cubic root of 228384137 is about 611.2543721346.

The spelling of 228384137 in words is "two hundred twenty-eight million, three hundred eighty-four thousand, one hundred thirty-seven".