1026286538 has 8 divisors (see below), whose sum is σ = 1581036132. Its totient is φ = 499274496.

The previous prime is 1026286531. The next prime is 1026286607. The reversal of 1026286538 is 8356826201.

It can be written as a sum of positive squares in 2 ways, for example, as 856323169 + 169963369 = 29263^2 + 13037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1026286495 and 1026286504.

It is not an unprimeable number, because it can be changed into a prime (1026286531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6934295 + ... + 6934442.

Almost surely, 2^1026286538 is an apocalyptic number.

1026286538 is a deficient number, since it is larger than the sum of its proper divisors (554749594).

1026286538 is a wasteful number, since it uses less digits than its factorization.

1026286538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13868776.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 1026286538 is about 32035.7072342722. The cubic root of 1026286538 is about 1008.6865054748.

The spelling of 1026286538 in words is "one billion, twenty-six million, two hundred eighty-six thousand, five hundred thirty-eight".