1227808996 has 6 divisors (see below), whose sum is σ = 2148665750. Its totient is φ = 613904496.

The previous prime is 1227808993. The next prime is 1227808997. The reversal of 1227808996 is 6998087221.

It can be written as a sum of positive squares in only one way, i.e., 1227801600 + 7396 = 35040^2 + 86^2 .

It is not an unprimeable number, because it can be changed into a prime (1227808991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153476121 + ... + 153476128.

Almost surely, 2^1227808996 is an apocalyptic number.

It is an amenable number.

1227808996 is a deficient number, since it is larger than the sum of its proper divisors (920856754).

1227808996 is a wasteful number, since it uses less digits than its factorization.

1227808996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306952253 (or 306952251 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 1227808996 is about 35040.1055363707. The cubic root of 1227808996 is about 1070.8047040056.

The spelling of 1227808996 in words is "one billion, two hundred twenty-seven million, eight hundred eight thousand, nine hundred ninety-six".