228815461 has 24 divisors (see below), whose sum is σ = 292460480. Its totient is φ = 174845952.

The previous prime is 228815449. The next prime is 228815491. The reversal of 228815461 is 164518822.

It is not a de Polignac number, because 228815461 - 2⁵ = 228815429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228815461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228815401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35461 + ... + 41413.

Almost surely, 2^228815461 is an apocalyptic number.

It is an amenable number.

228815461 is a deficient number, since it is larger than the sum of its proper divisors (63645019).

228815461 is a wasteful number, since it uses less digits than its factorization.

228815461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6013 (or 5996 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 228815461 is about 15126.6473813598. The cubic root of 228815461 is about 611.6389331107.

The spelling of 228815461 in words is "two hundred twenty-eight million, eight hundred fifteen thousand, four hundred sixty-one".