228412961 has 16 divisors (see below), whose sum is σ = 275568000. Its totient is φ = 189023184.

The previous prime is 228412957. The next prime is 228412963. The reversal of 228412961 is 169214822.

228412961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228412961 - 2² = 228412957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228412963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1535 + ... + 21428.

It is an arithmetic number, because the mean of its divisors is an integer number (17223000).

Almost surely, 2^228412961 is an apocalyptic number.

It is an amenable number.

228412961 is a deficient number, since it is larger than the sum of its proper divisors (47155039).

228412961 is an equidigital number, since it uses as much as digits as its factorization.

228412961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23013 (or 22999 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 228412961 is about 15113.3371893834. The cubic root of 228412961 is about 611.2800862014.

The spelling of 228412961 in words is "two hundred twenty-eight million, four hundred twelve thousand, nine hundred sixty-one".