1489148720 has 20 divisors (see below), whose sum is σ = 3462270960. Its totient is φ = 595659456.

The previous prime is 1489148707. The next prime is 1489148723. The reversal of 1489148720 is 278419841.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1489148723) 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 3 ways as a sum of consecutive naturals, for example, 9307100 + ... + 9307259.

It is an arithmetic number, because the mean of its divisors is an integer number (173113548).

Almost surely, 2^1489148720 is an apocalyptic number.

1489148720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489148720 is an abundant number, since it is smaller than the sum of its proper divisors (1973122240).

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

1489148720 is a wasteful number, since it uses less digits than its factorization.

1489148720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18614372 (or 18614366 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 1489148720 is about 38589.4897608144. The cubic root of 1489148720 is about 1141.9472005180.

The spelling of 1489148720 in words is "one billion, four hundred eighty-nine million, one hundred forty-eight thousand, seven hundred twenty".