1028331833 has 8 divisors (see below), whose sum is σ = 1041074760. Its totient is φ = 1015649280.

The previous prime is 1028331809. The next prime is 1028331877. The reversal of 1028331833 is 3381338201.

It can be written as a sum of positive squares in 4 ways, for example, as 937024 + 1027394809 = 968^2 + 32053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028331833 is a prime.

It is a super-2 number, since 2×1028331833² = 2114932717522279778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1028331833.

It is not an unprimeable number, because it can be changed into a prime (1028331883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19673 + ... + 49433.

It is an arithmetic number, because the mean of its divisors is an integer number (130134345).

Almost surely, 2^1028331833 is an apocalyptic number.

It is an amenable number.

1028331833 is a deficient number, since it is larger than the sum of its proper divisors (12742927).

1028331833 is a wasteful number, since it uses less digits than its factorization.

1028331833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30187.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1028331833 is about 32067.6134596886. The cubic root of 1028331833 is about 1009.3561340849.

The spelling of 1028331833 in words is "one billion, twenty-eight million, three hundred thirty-one thousand, eight hundred thirty-three".