1489842720 has 336 divisors, whose sum is σ = 5399096472. Its totient is φ = 388177920.

The previous prime is 1489842661. The next prime is 1489842749. The reversal of 1489842720 is 272489841.

It can be written as a sum of positive squares in 4 ways, for example, as 1420686864 + 69155856 = 37692^2 + 8316^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6181800 + ... + 6182040.

Almost surely, 2^1489842720 is an apocalyptic number.

1489842720 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 1489842720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2699548236).

1489842720 is an abundant number, since it is smaller than the sum of its proper divisors (3909253752).

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

1489842720 is an equidigital number, since it uses as much as digits as its factorization.

1489842720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1489842720 is about 38598.4807991195. The cubic root of 1489842720 is about 1142.1245699249.

The spelling of 1489842720 in words is "one billion, four hundred eighty-nine million, eight hundred forty-two thousand, seven hundred twenty".