1228235716 has 6 divisors (see below), whose sum is σ = 2149412510. Its totient is φ = 614117856.

The previous prime is 1228235693. The next prime is 1228235747. The reversal of 1228235716 is 6175328221.

It can be written as a sum of positive squares in only one way, i.e., 834054400 + 394181316 = 28880^2 + 19854^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153529461 + ... + 153529468.

Almost surely, 2^1228235716 is an apocalyptic number.

It is an amenable number.

1228235716 is a deficient number, since it is larger than the sum of its proper divisors (921176794).

1228235716 is a wasteful number, since it uses less digits than its factorization.

1228235716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307058933 (or 307058931 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 1228235716 is about 35046.1940301654. The cubic root of 1228235716 is about 1070.9287409038.

The spelling of 1228235716 in words is "one billion, two hundred twenty-eight million, two hundred thirty-five thousand, seven hundred sixteen".