1026865240 has 16 divisors (see below), whose sum is σ = 2310446880. Its totient is φ = 410746080.

The previous prime is 1026865219. The next prime is 1026865247. The reversal of 1026865240 is 425686201.

1026865240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1026865240² = 2108904442240515200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1026865196 and 1026865205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026865247) 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, 12835776 + ... + 12835855.

It is an arithmetic number, because the mean of its divisors is an integer number (144402930).

Almost surely, 2^1026865240 is an apocalyptic number.

1026865240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026865240 is an abundant number, since it is smaller than the sum of its proper divisors (1283581640).

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

1026865240 is a wasteful number, since it uses less digits than its factorization.

1026865240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25671642 (or 25671638 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 1026865240 is about 32044.7381015979. The cubic root of 1026865240 is about 1008.8760624173.

The spelling of 1026865240 in words is "one billion, twenty-six million, eight hundred sixty-five thousand, two hundred forty".