1228286448 has 120 divisors (see below), whose sum is σ = 3708767088. Its totient is φ = 378034176.

The previous prime is 1228286413. The next prime is 1228286497. The reversal of 1228286448 is 8446828221.

1228286448 is a `hidden beast` number, since 122 + 8 + 2 + 86 + 448 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125011 + ... + 134477.

Almost surely, 2^1228286448 is an apocalyptic number.

1228286448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228286448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1854383544).

1228286448 is an abundant number, since it is smaller than the sum of its proper divisors (2480480640).

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

1228286448 is a wasteful number, since it uses less digits than its factorization.

1228286448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9551 (or 9542 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The square root of 1228286448 is about 35046.9178102726. The cubic root of 1228286448 is about 1070.9434855244.

The spelling of 1228286448 in words is "one billion, two hundred twenty-eight million, two hundred eighty-six thousand, four hundred forty-eight".