228286485 has 64 divisors (see below), whose sum is σ = 476428800. Its totient is φ = 101523456.

The previous prime is 228286469. The next prime is 228286507. The reversal of 228286485 is 584682822.

It is not a de Polignac number, because 228286485 - 2⁴ = 228286469 is a prime.

It is a super-2 number, since 2×228286485² = 104229438467310450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 228286485.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 31701 + ... + 38229.

It is an arithmetic number, because the mean of its divisors is an integer number (7444200).

Almost surely, 2^228286485 is an apocalyptic number.

It is an amenable number.

228286485 is an abundant number, since it is smaller than the sum of its proper divisors (248142315).

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

228286485 is a wasteful number, since it uses less digits than its factorization.

228286485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6587 (or 6581 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 228286485 is about 15109.1523587526. The cubic root of 228286485 is about 611.1672401032.

The spelling of 228286485 in words is "two hundred twenty-eight million, two hundred eighty-six thousand, four hundred eighty-five".