1489125440 has 112 divisors (see below), whose sum is σ = 3951085824. Its totient is φ = 529920000.

The previous prime is 1489125401. The next prime is 1489125461. The reversal of 1489125440 is 445219841.

It is a junction number, because it is equal to n+sod(n) for n = 1489125394 and 1489125403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160940 + ... + 169940.

It is an arithmetic number, because the mean of its divisors is an integer number (35277552).

Almost surely, 2^1489125440 is an apocalyptic number.

1489125440 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 1489125440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975542912).

1489125440 is an abundant number, since it is smaller than the sum of its proper divisors (2461960384).

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

1489125440 is a wasteful number, since it uses less digits than its factorization.

1489125440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9076 (or 9066 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1489125440 is about 38589.1881231000. The cubic root of 1489125440 is about 1141.9412497649.

The spelling of 1489125440 in words is "one billion, four hundred eighty-nine million, one hundred twenty-five thousand, four hundred forty".