1228902236 has 12 divisors (see below), whose sum is σ = 2244082512. Its totient is φ = 587735808.

The previous prime is 1228902229. The next prime is 1228902251. The reversal of 1228902236 is 6322098221.

It is a junction number, because it is equal to n+sod(n) for n = 1228902196 and 1228902205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6678725 + ... + 6678908.

It is an arithmetic number, because the mean of its divisors is an integer number (187006876).

Almost surely, 2^1228902236 is an apocalyptic number.

It is an amenable number.

1228902236 is a deficient number, since it is larger than the sum of its proper divisors (1015180276).

1228902236 is a wasteful number, since it uses less digits than its factorization.

1228902236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13357660 (or 13357658 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1228902236 is about 35055.7019042552. The cubic root of 1228902236 is about 1071.1224242326.

The spelling of 1228902236 in words is "one billion, two hundred twenty-eight million, nine hundred two thousand, two hundred thirty-six".