1026002881 has 4 divisors (see below), whose sum is σ = 1026141012. Its totient is φ = 1025864752.

The previous prime is 1026002863. The next prime is 1026002893. The reversal of 1026002881 is 1882006201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1882006201 = 107 ⋅17588843.

It can be written as a sum of positive squares in 2 ways, for example, as 250937281 + 775065600 = 15841^2 + 27840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026002881 - 2¹³ = 1025994689 is a prime.

It is a super-2 number, since 2×1026002881² = 2105363823640600322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1026002821) 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 3 ways as a sum of consecutive naturals, for example, 57250 + ... + 73003.

It is an arithmetic number, because the mean of its divisors is an integer number (256535253).

Almost surely, 2^1026002881 is an apocalyptic number.

It is an amenable number.

1026002881 is a deficient number, since it is larger than the sum of its proper divisors (138131).

1026002881 is an equidigital number, since it uses as much as digits as its factorization.

1026002881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138130.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 1026002881 is about 32031.2797277911. The cubic root of 1026002881 is about 1008.5935660789.

The spelling of 1026002881 in words is "one billion, twenty-six million, two thousand, eight hundred eighty-one".