1072128850 has 24 divisors (see below), whose sum is σ = 2147557860. Its totient is φ = 395862720.

The previous prime is 1072128833. The next prime is 1072128853. The reversal of 1072128850 is 588212701.

It can be written as a sum of positive squares in 6 ways, for example, as 453562209 + 618566641 = 21297^2 + 24871^2 .

It is a super-2 number, since 2×1072128850² = 2298920542004645000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1072128853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 824065 + ... + 825364.

Almost surely, 2^1072128850 is an apocalyptic number.

1072128850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1072128850 is an abundant number, since it is smaller than the sum of its proper divisors (1075429010).

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

1072128850 is a wasteful number, since it uses less digits than its factorization.

1072128850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649454 (or 1649449 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 1072128850 is about 32743.3787199794. The cubic root of 1072128850 is about 1023.4869924087.

The spelling of 1072128850 in words is "one billion, seventy-two million, one hundred twenty-eight thousand, eight hundred fifty".