228013438 has 16 divisors (see below), whose sum is σ = 346901184. Its totient is φ = 112389120.

The previous prime is 228013427. The next prime is 228013441. The reversal of 228013438 is 834310822.

228013438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50406 + ... + 54742.

It is an arithmetic number, because the mean of its divisors is an integer number (21681324).

Almost surely, 2^228013438 is an apocalyptic number.

228013438 is a deficient number, since it is larger than the sum of its proper divisors (118887746).

228013438 is a wasteful number, since it uses less digits than its factorization.

228013438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 228013438 is about 15100.1138406305. The cubic root of 228013438 is about 610.9234762815.

The spelling of 228013438 in words is "two hundred twenty-eight million, thirteen thousand, four hundred thirty-eight".