1028706426 has 96 divisors (see below), whose sum is σ = 2525765760. Its totient is φ = 310115520.

The previous prime is 1028706407. The next prime is 1028706463. The reversal of 1028706426 is 6246078201.

1028706426 is a `hidden beast` number, since 1 + 0 + 2 + 8 + 7 + 0 + 642 + 6 = 666.

1028706426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2044891 + ... + 2045393.

It is an arithmetic number, because the mean of its divisors is an integer number (26310060).

Almost surely, 2^1028706426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028706426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262882880).

1028706426 is an abundant number, since it is smaller than the sum of its proper divisors (1497059334).

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

1028706426 is a wasteful number, since it uses less digits than its factorization.

1028706426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1028706426 is about 32073.4536026291. The cubic root of 1028706426 is about 1009.4786794311.

The spelling of 1028706426 in words is "one billion, twenty-eight million, seven hundred six thousand, four hundred twenty-six".