1489720800 has 72 divisors (see below), whose sum is σ = 4849049016. Its totient is φ = 397258240.

The previous prime is 1489720781. The next prime is 1489720801. The reversal of 1489720800 is 80279841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489720801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307959 + ... + 312758.

It is an arithmetic number, because the mean of its divisors is an integer number (67347903).

Almost surely, 2^1489720800 is an apocalyptic number.

1489720800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489720800 is an abundant number, since it is smaller than the sum of its proper divisors (3359328216).

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

1489720800 is a wasteful number, since it uses less digits than its factorization.

1489720800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620740 (or 620727 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1489720800 is about 38596.9014300371. The cubic root of 1489720800 is about 1142.0934141471.

The spelling of 1489720800 in words is "one billion, four hundred eighty-nine million, seven hundred twenty thousand, eight hundred".