1489380864 has 120 divisors (see below), whose sum is σ = 4103989560. Its totient is φ = 479969280.

The previous prime is 1489380857. The next prime is 1489380877. The reversal of 1489380864 is 4680839841.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1475592 + ... + 1476600.

It is an arithmetic number, because the mean of its divisors is an integer number (34199913).

Almost surely, 2^1489380864 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 1489380864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2051994780).

1489380864 is an abundant number, since it is smaller than the sum of its proper divisors (2614608696).

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

1489380864 is an equidigital number, since it uses as much as digits as its factorization.

1489380864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 1489380864 is about 38592.4975092310. The cubic root of 1489380864 is about 1142.0065369728.

The spelling of 1489380864 in words is "one billion, four hundred eighty-nine million, three hundred eighty thousand, eight hundred sixty-four".