228260685 has 16 divisors (see below), whose sum is σ = 365485824. Its totient is φ = 121649472.

The previous prime is 228260677. The next prime is 228260687. The reversal of 228260685 is 586062822.

It is not a de Polignac number, because 228260685 - 2³ = 228260677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228260687) 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, 18939 + ... + 28551.

It is an arithmetic number, because the mean of its divisors is an integer number (22842864).

Almost surely, 2^228260685 is an apocalyptic number.

It is an amenable number.

228260685 is a deficient number, since it is larger than the sum of its proper divisors (137225139).

228260685 is a wasteful number, since it uses less digits than its factorization.

228260685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11204.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 228260685 is about 15108.2985474871. The cubic root of 228260685 is about 611.1442153662.

The spelling of 228260685 in words is "two hundred twenty-eight million, two hundred sixty thousand, six hundred eighty-five".