228141438 has 16 divisors (see below), whose sum is σ = 521466240. Its totient is φ = 65183256.

The previous prime is 228141437. The next prime is 228141449. The reversal of 228141438 is 834141822.

It is a junction number, because it is equal to n+sod(n) for n = 228141399 and 228141408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228141437) 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, 2715928 + ... + 2716011.

It is an arithmetic number, because the mean of its divisors is an integer number (32591640).

Almost surely, 2^228141438 is an apocalyptic number.

228141438 is an abundant number, since it is smaller than the sum of its proper divisors (293324802).

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

228141438 is a wasteful number, since it uses less digits than its factorization.

228141438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431951.

The product of its digits is 12288, while the sum is 33.

The square root of 228141438 is about 15104.3516246147. The cubic root of 228141438 is about 611.0377730198.

The spelling of 228141438 in words is "two hundred twenty-eight million, one hundred forty-one thousand, four hundred thirty-eight".