228285039 has 16 divisors (see below), whose sum is σ = 307008000. Its totient is φ = 150882336.

The previous prime is 228284921. The next prime is 228285059. The reversal of 228285039 is 930582822.

It is not a de Polignac number, because 228285039 - 2¹¹ = 228282991 is a prime.

It is a super-2 number, since 2×228285039² = 104228118062463042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228284988 and 228285006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228285059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231742 + ... + 232724.

It is an arithmetic number, because the mean of its divisors is an integer number (19188000).

Almost surely, 2^228285039 is an apocalyptic number.

228285039 is a deficient number, since it is larger than the sum of its proper divisors (78722961).

228285039 is a wasteful number, since it uses less digits than its factorization.

228285039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 228285039 is about 15109.1045068859. The cubic root of 228285039 is about 611.1659496929.

The spelling of 228285039 in words is "two hundred twenty-eight million, two hundred eighty-five thousand, thirty-nine".