1489661420 has 48 divisors (see below), whose sum is σ = 3373920480. Its totient is φ = 549213696.

The previous prime is 1489661399. The next prime is 1489661443. The reversal of 1489661420 is 241669841.

It is a super-2 number, since 2×1489661420² = 4438182292472832800, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 188264 + ... + 196016.

It is an arithmetic number, because the mean of its divisors is an integer number (70290010).

Almost surely, 2^1489661420 is an apocalyptic number.

1489661420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1489661420 is an abundant number, since it is smaller than the sum of its proper divisors (1884259060).

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

1489661420 is a wasteful number, since it uses less digits than its factorization.

1489661420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514 (or 8512 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1489661420 is about 38596.1321896379. The cubic root of 1489661420 is about 1142.0782394003.

The spelling of 1489661420 in words is "one billion, four hundred eighty-nine million, six hundred sixty-one thousand, four hundred twenty".