1026305385 has 64 divisors (see below), whose sum is σ = 1992812544. Its totient is φ = 440294400.

The previous prime is 1026305383. The next prime is 1026305411. The reversal of 1026305385 is 5835036201.

It is not a de Polignac number, because 1026305385 - 2¹ = 1026305383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1026305383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 875850 + ... + 877020.

It is an arithmetic number, because the mean of its divisors is an integer number (31137696).

Almost surely, 2^1026305385 is an apocalyptic number.

1026305385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1026305385 is a deficient number, since it is larger than the sum of its proper divisors (966507159).

1026305385 is a wasteful number, since it uses less digits than its factorization.

1026305385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1026305385 is about 32036.0013890623. The cubic root of 1026305385 is about 1008.6926800331.

The spelling of 1026305385 in words is "one billion, twenty-six million, three hundred five thousand, three hundred eighty-five".