1228470229 has 6 divisors (see below), whose sum is σ = 1429036854. Its totient is φ = 1052974440.

The previous prime is 1228470223. The next prime is 1228470239. The reversal of 1228470229 is 9220748221.

It can be written as a sum of positive squares in only one way, i.e., 1198198225 + 30272004 = 34615^2 + 5502^2 .

It is not a de Polignac number, because 1228470229 - 2⁹ = 1228469717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228470223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12535362 + ... + 12535459.

It is an arithmetic number, because the mean of its divisors is an integer number (238172809).

Almost surely, 2^1228470229 is an apocalyptic number.

It is an amenable number.

1228470229 is a deficient number, since it is larger than the sum of its proper divisors (200566625).

1228470229 is an equidigital number, since it uses as much as digits as its factorization.

1228470229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25070835 (or 25070828 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1228470229 is about 35049.5396403434. The cubic root of 1228470229 is about 1070.9968957718.

The spelling of 1228470229 in words is "one billion, two hundred twenty-eight million, four hundred seventy thousand, two hundred twenty-nine".