1489960920 has 256 divisors, whose sum is σ = 5466839040. Its totient is φ = 317104128.

The previous prime is 1489960919. The next prime is 1489960939. The reversal of 1489960920 is 290699841.

It is a self number, because there is not a number n which added to its sum of digits gives 1489960920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1470334 + ... + 1471346.

It is an arithmetic number, because the mean of its divisors is an integer number (21354840).

Almost surely, 2^1489960920 is an apocalyptic number.

1489960920 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 1489960920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2733419520).

1489960920 is an abundant number, since it is smaller than the sum of its proper divisors (3976878120).

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

1489960920 is a wasteful number, since it uses less digits than its factorization.

1489960920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 1489960920 is about 38600.0119170966. The cubic root of 1489960920 is about 1142.1547734608.

The spelling of 1489960920 in words is "one billion, four hundred eighty-nine million, nine hundred sixty thousand, nine hundred twenty".