1489493520 has 60 divisors (see below), whose sum is σ = 5002218156. Its totient is φ = 397198080.

The previous prime is 1489493479. The next prime is 1489493531. The reversal of 1489493520 is 253949841.

1489493520 is a `hidden beast` number, since 1 + 4 + 89 + 49 + 3 + 520 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 639887616 + 849605904 = 25296^2 + 29148^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-3 number, since 3×1489493520³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1033651 + ... + 1035090.

Almost surely, 2^1489493520 is an apocalyptic number.

1489493520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489493520 is an abundant number, since it is smaller than the sum of its proper divisors (3512724636).

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

1489493520 is a wasteful number, since it uses less digits than its factorization.

1489493520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068760 (or 2068751 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1489493520 is about 38593.9570399305. The cubic root of 1489493520 is about 1142.0353298419.

The spelling of 1489493520 in words is "one billion, four hundred eighty-nine million, four hundred ninety-three thousand, five hundred twenty".