1028939051 has 16 divisors (see below), whose sum is σ = 1183311360. Its totient is φ = 876432960.

The previous prime is 1028939047. The next prime is 1028939069. The reversal of 1028939051 is 1509398201.

It is a cyclic number.

It is not a de Polignac number, because 1028939051 - 2² = 1028939047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1028938996 and 1028939014.

It is not an unprimeable number, because it can be changed into a prime (1028939081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1119170 + ... + 1120088.

It is an arithmetic number, because the mean of its divisors is an integer number (73956960).

Almost surely, 2^1028939051 is an apocalyptic number.

1028939051 is a deficient number, since it is larger than the sum of its proper divisors (154372309).

1028939051 is an equidigital number, since it uses as much as digits as its factorization.

1028939051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 1028939051 is about 32077.0798390377. The cubic root of 1028939051 is about 1009.5547660168.

The spelling of 1028939051 in words is "one billion, twenty-eight million, nine hundred thirty-nine thousand, fifty-one".