1228748364 has 72 divisors (see below), whose sum is σ = 3224632320. Its totient is φ = 394092000.

The previous prime is 1228748359. The next prime is 1228748369. The reversal of 1228748364 is 4638478221.

It is a happy number.

1228748364 is a `hidden beast` number, since 1 + 2 + 287 + 4 + 8 + 364 = 666.

It is an interprime number because it is at equal distance from previous prime (1228748359) and next prime (1228748369).

It is not an unprimeable number, because it can be changed into a prime (1228748369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196689 + ... + 202839.

It is an arithmetic number, because the mean of its divisors is an integer number (44786560).

Almost surely, 2^1228748364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228748364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612316160).

1228748364 is an abundant number, since it is smaller than the sum of its proper divisors (1995883956).

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

1228748364 is a wasteful number, since it uses less digits than its factorization.

1228748364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6371 (or 6366 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 1228748364 is about 35053.5071569166. The cubic root of 1228748364 is about 1071.0777169526.

The spelling of 1228748364 in words is "one billion, two hundred twenty-eight million, seven hundred forty-eight thousand, three hundred sixty-four".