1289552 has 40 divisors (see below), whose sum is σ = 2892672. Its totient is φ = 550400.

The previous prime is 1289551. The next prime is 1289557. The reversal of 1289552 is 2559821.

It is a super-3 number, since 3×1289552³ = 6433359678703693824, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289551) 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, 2777 + ... + 3207.

2^1289552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1289552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1446336).

1289552 is an abundant number, since it is smaller than the sum of its proper divisors (1603120).

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

1289552 is a wasteful number, since it uses less digits than its factorization.

1289552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 461 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 1289552 is about 1135.5844310310. The cubic root of 1289552 is about 108.8461201529.

The spelling of 1289552 in words is "one million, two hundred eighty-nine thousand, five hundred fifty-two".