228485615 has 8 divisors (see below), whose sum is σ = 276276528. Its totient is φ = 181392640.

The previous prime is 228485603. The next prime is 228485623. The reversal of 228485615 is 516584822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228485615 - 2¹⁶ = 228420079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173762 + ... + 175071.

It is an arithmetic number, because the mean of its divisors is an integer number (34534566).

Almost surely, 2^228485615 is an apocalyptic number.

228485615 is a deficient number, since it is larger than the sum of its proper divisors (47790913).

228485615 is a wasteful number, since it uses less digits than its factorization.

228485615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348969.

The product of its digits is 153600, while the sum is 41.

The square root of 228485615 is about 15115.7406368329. The cubic root of 228485615 is about 611.3448916822.

The spelling of 228485615 in words is "two hundred twenty-eight million, four hundred eighty-five thousand, six hundred fifteen".