228142404 has 72 divisors (see below), whose sum is σ = 665316288. Its totient is φ = 64566720.

The previous prime is 228142403. The next prime is 228142429. The reversal of 228142404 is 404241822.

It is not an unprimeable number, because it can be changed into a prime (228142403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22734 + ... + 31194.

It is an arithmetic number, because the mean of its divisors is an integer number (9240504).

Almost surely, 2^228142404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228142404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332658144).

228142404 is an abundant number, since it is smaller than the sum of its proper divisors (437173884).

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

228142404 is a wasteful number, since it uses less digits than its factorization.

228142404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8585 (or 8580 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 228142404 is about 15104.3836021203. The cubic root of 228142404 is about 611.0386354405.

The spelling of 228142404 in words is "two hundred twenty-eight million, one hundred forty-two thousand, four hundred four".