1228437056 has 168 divisors, whose sum is σ = 3127248000. Its totient is φ = 473410560.

The previous prime is 1228437011. The next prime is 1228437097. The reversal of 1228437056 is 6507348221.

It is a happy 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, 5139785 + ... + 5140023.

Almost surely, 2^1228437056 is an apocalyptic number.

1228437056 is a gapful number since it is divisible by the number (16) 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 1228437056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563624000).

1228437056 is an abundant number, since it is smaller than the sum of its proper divisors (1898810944).

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

1228437056 is a wasteful number, since it uses less digits than its factorization.

1228437056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 1228437056 is about 35049.0664069672. The cubic root of 1228437056 is about 1070.9872554623.

The spelling of 1228437056 in words is "one billion, two hundred twenty-eight million, four hundred thirty-seven thousand, fifty-six".