228055985 has 16 divisors (see below), whose sum is σ = 280599552. Its totient is φ = 177854400.

The previous prime is 228055967. The next prime is 228055991. The reversal of 228055985 is 589550822.

It is not a de Polignac number, because 228055985 - 2⁶ = 228055921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61895 + ... + 65475.

It is an arithmetic number, because the mean of its divisors is an integer number (17537472).

Almost surely, 2^228055985 is an apocalyptic number.

It is an amenable number.

228055985 is a deficient number, since it is larger than the sum of its proper divisors (52543567).

228055985 is a wasteful number, since it uses less digits than its factorization.

228055985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904.

The product of its (nonzero) digits is 288000, while the sum is 44.

The square root of 228055985 is about 15101.5226053534. The cubic root of 228055985 is about 610.9614730837.

The spelling of 228055985 in words is "two hundred twenty-eight million, fifty-five thousand, nine hundred eighty-five".