1288252 has 24 divisors (see below), whose sum is σ = 2602880. Its totient is φ = 546480.

The previous prime is 1288249. The next prime is 1288291. The reversal of 1288252 is 2528821.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1288252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3727 + ... + 4057.

2^1288252 is an apocalyptic number.

It is an amenable number.

1288252 is an abundant number, since it is smaller than the sum of its proper divisors (1314628).

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

1288252 is a wasteful number, since it uses less digits than its factorization.

1288252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 479 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 1288252 is about 1135.0118942108. The cubic root of 1288252 is about 108.8095318567.

It can be divided in two parts, 1288 and 252, that added together give a triangular number (1540 = T₅₅).

The spelling of 1288252 in words is "one million, two hundred eighty-eight thousand, two hundred fifty-two".