1289483120 has 20 divisors (see below), whose sum is σ = 2998048440. Its totient is φ = 515793216.

The previous prime is 1289483119. The next prime is 1289483137. The reversal of 1289483120 is 213849821.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8059190 + ... + 8059349.

It is an arithmetic number, because the mean of its divisors is an integer number (149902422).

Almost surely, 2^1289483120 is an apocalyptic number.

1289483120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1289483120 is an abundant number, since it is smaller than the sum of its proper divisors (1708565320).

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

1289483120 is a wasteful number, since it uses less digits than its factorization.

1289483120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16118552 (or 16118546 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1289483120 is about 35909.3737065964. The cubic root of 1289483120 is about 1088.4418215314.

The spelling of 1289483120 in words is "one billion, two hundred eighty-nine million, four hundred eighty-three thousand, one hundred twenty".