1026440634 has 8 divisors (see below), whose sum is σ = 2052881280. Its totient is φ = 342146876.

The previous prime is 1026440627. The next prime is 1026440651. The reversal of 1026440634 is 4360446201.

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

1026440634 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85536714 + ... + 85536725.

It is an arithmetic number, because the mean of its divisors is an integer number (256610160).

Almost surely, 2^1026440634 is an apocalyptic number.

1026440634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1026440634 is a wasteful number, since it uses less digits than its factorization.

1026440634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171073444.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1026440634 is about 32038.1122103035. The cubic root of 1026440634 is about 1008.7369874053.

Adding to 1026440634 its reverse (4360446201), we get a palindrome (5386886835).

The spelling of 1026440634 in words is "one billion, twenty-six million, four hundred forty thousand, six hundred thirty-four".