228304461 has 32 divisors (see below), whose sum is σ = 380694528. Its totient is φ = 118232640.

The previous prime is 228304457. The next prime is 228304469. The reversal of 228304461 is 164403822.

It is not a de Polignac number, because 228304461 - 2² = 228304457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228304469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83431 + ... + 86123.

It is an arithmetic number, because the mean of its divisors is an integer number (11896704).

Almost surely, 2^228304461 is an apocalyptic number.

228304461 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

228304461 is a deficient number, since it is larger than the sum of its proper divisors (152390067).

228304461 is a wasteful number, since it uses less digits than its factorization.

228304461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 228304461 is about 15109.7472182694. The cubic root of 228304461 is about 611.1832814294.

The spelling of 228304461 in words is "two hundred twenty-eight million, three hundred four thousand, four hundred sixty-one".