1228254144 has 84 divisors (see below), whose sum is σ = 3519059256. Its totient is φ = 377914368.

The previous prime is 1228254121. The next prime is 1228254151. The reversal of 1228254144 is 4414528221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13522 + ... + 51374.

Almost surely, 2^1228254144 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 1228254144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759529628).

1228254144 is an abundant number, since it is smaller than the sum of its proper divisors (2290805112).

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

1228254144 is a wasteful number, since it uses less digits than its factorization.

1228254144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37894 (or 37871 counting only the distinct ones).

The product of its digits is 20480, while the sum is 33.

The square root of 1228254144 is about 35046.4569393256. The cubic root of 1228254144 is about 1070.9340968182.

The spelling of 1228254144 in words is "one billion, two hundred twenty-eight million, two hundred fifty-four thousand, one hundred forty-four".