1000133928 has 24 divisors (see below), whose sum is σ = 2708696250. Its totient is φ = 333377952.

The previous prime is 1000133921. The next prime is 1000133929. The reversal of 1000133928 is 8293310001.

It can be written as a sum of positive squares in only one way, i.e., 993384324 + 6749604 = 31518^2 + 2598^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (1000133921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6945303 + ... + 6945446.

Almost surely, 2^1000133928 is an apocalyptic number.

1000133928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1000133928 is an abundant number, since it is smaller than the sum of its proper divisors (1708562322).

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

1000133928 is a wasteful number, since it uses less digits than its factorization.

1000133928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890761 (or 13890754 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1000133928 is about 31624.8941183998. The cubic root of 1000133928 is about 1000.0446406738.

Adding to 1000133928 its reverse (8293310001), we get a palindrome (9293443929).

The spelling of 1000133928 in words is "one billion, one hundred thirty-three thousand, nine hundred twenty-eight".