1489489590 has 32 divisors (see below), whose sum is σ = 3698045280. Its totient is φ = 383500544.

The previous prime is 1489489577. The next prime is 1489489627. The reversal of 1489489590 is 959849841.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1489489590.

It is a congruent number.

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, 855159 + ... + 856898.

It is an arithmetic number, because the mean of its divisors is an integer number (115563915).

Almost surely, 2^1489489590 is an apocalyptic number.

1489489590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1489489590 is an abundant number, since it is smaller than the sum of its proper divisors (2208555690).

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

1489489590 is a wasteful number, since it uses less digits than its factorization.

1489489590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712096.

The product of its (nonzero) digits is 3732480, while the sum is 57.

The square root of 1489489590 is about 38593.9061251903. The cubic root of 1489489590 is about 1142.0343254282.

The spelling of 1489489590 in words is "one billion, four hundred eighty-nine million, four hundred eighty-nine thousand, five hundred ninety".