1489126240 has 144 divisors (see below), whose sum is σ = 4090752288. Its totient is φ = 501792768.

The previous prime is 1489126231. The next prime is 1489126241. The reversal of 1489126240 is 426219841.

It is a self number, because there is not a number n which added to its sum of digits gives 1489126240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489126241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7715584 + ... + 7715776.

It is an arithmetic number, because the mean of its divisors is an integer number (28408002).

Almost surely, 2^1489126240 is an apocalyptic number.

1489126240 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 1489126240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2045376144).

1489126240 is an abundant number, since it is smaller than the sum of its proper divisors (2601626048).

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

1489126240 is an equidigital number, since it uses as much as digits as its factorization.

1489126240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1489126240 is about 38589.1984886963. The cubic root of 1489126240 is about 1141.9414542591.

The spelling of 1489126240 in words is "one billion, four hundred eighty-nine million, one hundred twenty-six thousand, two hundred forty".