1026088440 has 256 divisors, whose sum is σ = 3527798400. Its totient is φ = 236888064.

The previous prime is 1026088433. The next prime is 1026088447. The reversal of 1026088440 is 448806201.

It is an interprime number because it is at equal distance from previous prime (1026088433) and next prime (1026088447).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026088447) 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, 1673574 + ... + 1674186.

Almost surely, 2^1026088440 is an apocalyptic number.

1026088440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1026088440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763899200).

1026088440 is an abundant number, since it is smaller than the sum of its proper divisors (2501709960).

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

1026088440 is a wasteful number, since it uses less digits than its factorization.

1026088440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 1026088440 is about 32032.6152538315. The cubic root of 1026088440 is about 1008.6216010418.

The spelling of 1026088440 in words is "one billion, twenty-six million, eighty-eight thousand, four hundred forty".