1028706238 has 16 divisors (see below), whose sum is σ = 1764927360. Its totient is φ = 440516376.

The previous prime is 1028706197. The next prime is 1028706247. The reversal of 1028706238 is 8326078201.

It is a super-2 number, since 2×1028706238² = 2116473048200225288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1028706197 and 1028706206.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11556 + ... + 46807.

It is an arithmetic number, because the mean of its divisors is an integer number (110307960).

Almost surely, 2^1028706238 is an apocalyptic number.

1028706238 is a deficient number, since it is larger than the sum of its proper divisors (736221122).

1028706238 is a wasteful number, since it uses less digits than its factorization.

1028706238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59631.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1028706238 is about 32073.4506718563. The cubic root of 1028706238 is about 1009.4786179358.

The spelling of 1028706238 in words is "one billion, twenty-eight million, seven hundred six thousand, two hundred thirty-eight".