1026440144 has 60 divisors (see below), whose sum is σ = 2157998784. Its totient is φ = 472653312.

The previous prime is 1026440141. The next prime is 1026440171. The reversal of 1026440144 is 4410446201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026440141) 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 11 ways as a sum of consecutive naturals, for example, 214967 + ... + 219689.

Almost surely, 2^1026440144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1026440144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1078999392).

1026440144 is an abundant number, since it is smaller than the sum of its proper divisors (1131558640).

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

1026440144 is a wasteful number, since it uses less digits than its factorization.

1026440144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812 (or 4789 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1026440144 is about 32038.1045631604. The cubic root of 1026440144 is about 1008.7368268890.

Adding to 1026440144 its reverse (4410446201), we get a palindrome (5436886345).

The spelling of 1026440144 in words is "one billion, twenty-six million, four hundred forty thousand, one hundred forty-four".