1228865304 has 32 divisors (see below), whose sum is σ = 3081464640. Its totient is φ = 408381600.

The previous prime is 1228865279. The next prime is 1228865329. The reversal of 1228865304 is 4035688221.

It is an interprime number because it is at equal distance from previous prime (1228865279) and next prime (1228865329).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69402 + ... + 85289.

It is an arithmetic number, because the mean of its divisors is an integer number (96295770).

Almost surely, 2^1228865304 is an apocalyptic number.

It is an amenable number.

1228865304 is an abundant number, since it is smaller than the sum of its proper divisors (1852599336).

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

1228865304 is a wasteful number, since it uses less digits than its factorization.

1228865304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155031 (or 155027 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 1228865304 is about 35055.1751386297. The cubic root of 1228865304 is about 1071.1116940355. Note that the first 3 decimals are identical.

The spelling of 1228865304 in words is "one billion, two hundred twenty-eight million, eight hundred sixty-five thousand, three hundred four".