1489557239040 has 432 divisors, whose sum is σ = 5158183064832. Its totient is φ = 366175420416.

The previous prime is 1489557239021. The next prime is 1489557239041. The reversal of 1489557239040 is 409327559841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489557239041) 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 47 ways as a sum of consecutive naturals, for example, 923469274 + ... + 923470886.

It is an arithmetic number, because the mean of its divisors is an integer number (11940238576).

Almost surely, 2^{1489557239040} is an apocalyptic number.

1489557239040 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 1489557239040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2579091532416).

1489557239040 is an abundant number, since it is smaller than the sum of its proper divisors (3668625825792).

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

1489557239040 is a wasteful number, since it uses less digits than its factorization.

1489557239040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 1489557239040 in words is "one trillion, four hundred eighty-nine billion, five hundred fifty-seven million, two hundred thirty-nine thousand, forty".