1128268272 has 40 divisors (see below), whose sum is σ = 2916706176. Its totient is φ = 375829696.

The previous prime is 1128268259. The next prime is 1128268319. The reversal of 1128268272 is 2728628211.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1128268272.

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, 69823 + ... + 84449.

Almost surely, 2^1128268272 is an apocalyptic number.

1128268272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1128268272 is an abundant number, since it is smaller than the sum of its proper divisors (1788437904).

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

1128268272 is a wasteful number, since it uses less digits than its factorization.

1128268272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16245 (or 16239 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 1128268272 is about 33589.7048513380. The cubic root of 1128268272 is about 1041.0480903444.

The spelling of 1128268272 in words is "one billion, one hundred twenty-eight million, two hundred sixty-eight thousand, two hundred seventy-two".