1489342428 has 144 divisors (see below), whose sum is σ = 4420416000. Its totient is φ = 414025344.

The previous prime is 1489342403. The next prime is 1489342433. The reversal of 1489342428 is 8242439841.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1620153 + ... + 1621071.

Almost surely, 2^1489342428 is an apocalyptic number.

1489342428 is a gapful number since it is divisible by the number (18) 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 1489342428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2210208000).

1489342428 is an abundant number, since it is smaller than the sum of its proper divisors (2931073572).

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

1489342428 is a wasteful number, since it uses less digits than its factorization.

1489342428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104 (or 1099 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 1489342428 is about 38591.9995335821. Note that the first 3 decimals coincide. The cubic root of 1489342428 is about 1141.9967130829.

The spelling of 1489342428 in words is "one billion, four hundred eighty-nine million, three hundred forty-two thousand, four hundred twenty-eight".