228060621 has 12 divisors (see below), whose sum is σ = 330649020. Its totient is φ = 151473600.

The previous prime is 228060587. The next prime is 228060647. The reversal of 228060621 is 126060822.

It can be written as a sum of positive squares in 2 ways, for example, as 98783721 + 129276900 = 9939^2 + 11370^2 .

It is not a de Polignac number, because 228060621 - 2⁶ = 228060557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228060821) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 44680 + ... + 49521.

It is an arithmetic number, because the mean of its divisors is an integer number (27554085).

Almost surely, 2^228060621 is an apocalyptic number.

It is an amenable number.

228060621 is a deficient number, since it is larger than the sum of its proper divisors (102588399).

228060621 is a wasteful number, since it uses less digits than its factorization.

228060621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94476 (or 94473 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 228060621 is about 15101.6760990295. The cubic root of 228060621 is about 610.9656130002.

The spelling of 228060621 in words is "two hundred twenty-eight million, sixty thousand, six hundred twenty-one".