1489470640 has 320 divisors, whose sum is σ = 4456857600. Its totient is φ = 460615680.

The previous prime is 1489470613. The next prime is 1489470641. The reversal of 1489470640 is 460749841.

It is not an unprimeable number, because it can be changed into a prime (1489470641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14460829 + ... + 14460931.

It is an arithmetic number, because the mean of its divisors is an integer number (13927680).

Almost surely, 2^1489470640 is an apocalyptic number.

1489470640 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 1489470640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228428800).

1489470640 is an abundant number, since it is smaller than the sum of its proper divisors (2967386960).

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

1489470640 is a wasteful number, since it uses less digits than its factorization.

1489470640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 1489470640 is about 38593.6606193297. The cubic root of 1489470640 is about 1142.0294822385.

The spelling of 1489470640 in words is "one billion, four hundred eighty-nine million, four hundred seventy thousand, six hundred forty".