1228274272 has 48 divisors (see below), whose sum is σ = 2465467200. Its totient is φ = 602179200.

The previous prime is 1228274263. The next prime is 1228274321. The reversal of 1228274272 is 2724728221.

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, 1168147 + ... + 1169197.

It is an arithmetic number, because the mean of its divisors is an integer number (51363900).

Almost surely, 2^1228274272 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 1228274272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1232733600).

1228274272 is an abundant number, since it is smaller than the sum of its proper divisors (1237192928).

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

1228274272 is a wasteful number, since it uses less digits than its factorization.

1228274272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739 (or 1731 counting only the distinct ones).

The product of its digits is 50176, while the sum is 37.

The square root of 1228274272 is about 35046.7440998447. The cubic root of 1228274272 is about 1070.9399467595.

The spelling of 1228274272 in words is "one billion, two hundred twenty-eight million, two hundred seventy-four thousand, two hundred seventy-two".