1228836936 has 16 divisors (see below), whose sum is σ = 3072092400. Its totient is φ = 409612304.

The previous prime is 1228836881. The next prime is 1228836941. The reversal of 1228836936 is 6396388221.

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, 25600746 + ... + 25600793.

It is an arithmetic number, because the mean of its divisors is an integer number (192005775).

Almost surely, 2^1228836936 is an apocalyptic number.

It is an amenable number.

1228836936 is an abundant number, since it is smaller than the sum of its proper divisors (1843255464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228836936 is a wasteful number, since it uses less digits than its factorization.

1228836936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51201548 (or 51201544 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 1228836936 is about 35054.7705170067. The cubic root of 1228836936 is about 1071.1034518709.

The spelling of 1228836936 in words is "one billion, two hundred twenty-eight million, eight hundred thirty-six thousand, nine hundred thirty-six".