1289532 has 24 divisors (see below), whose sum is σ = 3083472. Its totient is φ = 419200.

The previous prime is 1289531. The next prime is 1289537. The reversal of 1289532 is 2359821.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1289532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819 + ... + 1802.

It is an arithmetic number, because the mean of its divisors is an integer number (128478).

2^1289532 is an apocalyptic number.

1289532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1289532 is an abundant number, since it is smaller than the sum of its proper divisors (1793940).

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

1289532 is a wasteful number, since it uses less digits than its factorization.

1289532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669 (or 2667 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1289532 is about 1135.5756249585. The cubic root of 1289532 is about 108.8455574423.

The spelling of 1289532 in words is "one million, two hundred eighty-nine thousand, five hundred thirty-two".