1489175040 has 160 divisors (see below), whose sum is σ = 4812192000. Its totient is φ = 392822784.

The previous prime is 1489174963. The next prime is 1489175041. The reversal of 1489175040 is 405719841.

It is a tau number, because it is divible by the number of its divisors (160).

It is a self number, because there is not a number n which added to its sum of digits gives 1489175040.

It is not an unprimeable number, because it can be changed into a prime (1489175041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743961 + ... + 745959.

It is an arithmetic number, because the mean of its divisors is an integer number (30076200).

Almost surely, 2^1489175040 is an apocalyptic number.

1489175040 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 1489175040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2406096000).

1489175040 is an abundant number, since it is smaller than the sum of its proper divisors (3323016960).

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

1489175040 is an equidigital number, since it uses as much as digits as its factorization.

1489175040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1489175040 is about 38589.8307848065. The cubic root of 1489175040 is about 1141.9539282708.

The spelling of 1489175040 in words is "one billion, four hundred eighty-nine million, one hundred seventy-five thousand, forty".